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Available in 33 languages" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-33" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">33 languages</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%B0%D9%83%D8%B1%D9%89_%D8%B3%D9%86%D9%88%D9%8A%D8%A9" title="ذكرى سنوية – Arabic" lang="ar" hreflang="ar" data-title="ذكرى سنوية" data-language-autonym="العربية" data-language-local-name="Arabic" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Aniversari" title="Aniversari – Catalan" lang="ca" hreflang="ca" data-title="Aniversari" data-language-autonym="Català" data-language-local-name="Catalan" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cv mw-list-item"><a href="https://cv.wikipedia.org/wiki/%C3%87%D1%83%D0%BB%D0%BB%C4%83%D1%85" title="Çуллăх – Chuvash" lang="cv" hreflang="cv" data-title="Çуллăх" data-language-autonym="Чӑвашла" data-language-local-name="Chuvash" class="interlanguage-link-target"><span>Чӑвашла</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/V%C3%BDro%C4%8D%C3%AD" title="Výročí – Czech" lang="cs" hreflang="cs" data-title="Výročí" data-language-autonym="Čeština" data-language-local-name="Czech" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-cy mw-list-item"><a href="https://cy.wikipedia.org/wiki/Pen-blwydd" title="Pen-blwydd – Welsh" lang="cy" hreflang="cy" data-title="Pen-blwydd" data-language-autonym="Cymraeg" data-language-local-name="Welsh" class="interlanguage-link-target"><span>Cymraeg</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Mindedag" title="Mindedag – Danish" lang="da" hreflang="da" data-title="Mindedag" data-language-autonym="Dansk" data-language-local-name="Danish" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Gedenktag" title="Gedenktag – German" lang="de" hreflang="de" data-title="Gedenktag" data-language-autonym="Deutsch" data-language-local-name="German" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Juubel" title="Juubel – Estonian" lang="et" hreflang="et" data-title="Juubel" data-language-autonym="Eesti" data-language-local-name="Estonian" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Aniversario" title="Aniversario – Spanish" lang="es" hreflang="es" data-title="Aniversario" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Datreveno" title="Datreveno – Esperanto" lang="eo" hreflang="eo" data-title="Datreveno" data-language-autonym="Esperanto" data-language-local-name="Esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%B3%D8%A7%D9%84%DA%AF%D8%B1%D8%AF" title="سالگرد – Persian" lang="fa" hreflang="fa" data-title="سالگرد" data-language-autonym="فارسی" data-language-local-name="Persian" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EA%B8%B0%EB%85%90%EC%9D%BC" title="기념일 – Korean" lang="ko" hreflang="ko" data-title="기념일" data-language-autonym="한국어" data-language-local-name="Korean" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%9C%E0%A4%AF%E0%A4%82%E0%A4%A4%E0%A5%80" title="जयंती – Hindi" lang="hi" hreflang="hi" data-title="जयंती" data-language-autonym="हिन्दी" data-language-local-name="Hindi" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-io mw-list-item"><a href="https://io.wikipedia.org/wiki/Aniversario" title="Aniversario – Ido" lang="io" hreflang="io" data-title="Aniversario" data-language-autonym="Ido" data-language-local-name="Ido" class="interlanguage-link-target"><span>Ido</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Peringatan_tahunan" title="Peringatan tahunan – Indonesian" lang="id" hreflang="id" data-title="Peringatan tahunan" data-language-autonym="Bahasa Indonesia" data-language-local-name="Indonesian" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Anniversario" title="Anniversario – Italian" lang="it" hreflang="it" data-title="Anniversario" data-language-autonym="Italiano" data-language-local-name="Italian" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/Jubileja" title="Jubileja – Latvian" lang="lv" hreflang="lv" data-title="Jubileja" data-language-autonym="Latviešu" data-language-local-name="Latvian" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-ml mw-list-item"><a href="https://ml.wikipedia.org/wiki/%E0%B4%B5%E0%B4%BE%E0%B5%BC%E0%B4%B7%E0%B4%BF%E0%B4%95%E0%B4%82" title="വാർഷികം – Malayalam" lang="ml" hreflang="ml" data-title="വാർഷികം" data-language-autonym="മലയാളം" data-language-local-name="Malayalam" class="interlanguage-link-target"><span>മലയാളം</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Ulang_tahun" title="Ulang tahun – Malay" lang="ms" hreflang="ms" data-title="Ulang tahun" data-language-autonym="Bahasa Melayu" data-language-local-name="Malay" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-my mw-list-item"><a href="https://my.wikipedia.org/wiki/%E1%80%94%E1%80%BE%E1%80%85%E1%80%BA%E1%80%95%E1%80%90%E1%80%BA%E1%80%9C%E1%80%8A%E1%80%BA" title="နှစ်ပတ်လည် – Burmese" lang="my" hreflang="my" data-title="နှစ်ပတ်လည်" data-language-autonym="မြန်မာဘာသာ" data-language-local-name="Burmese" class="interlanguage-link-target"><span>မြန်မာဘာသာ</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E8%A8%98%E5%BF%B5%E6%97%A5" title="記念日 – Japanese" lang="ja" hreflang="ja" data-title="記念日" data-language-autonym="日本語" data-language-local-name="Japanese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Rocznica" title="Rocznica – Polish" lang="pl" hreflang="pl" data-title="Rocznica" data-language-autonym="Polski" data-language-local-name="Polish" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%93%D0%BE%D0%B4%D0%BE%D0%B2%D1%89%D0%B8%D0%BD%D0%B0" title="Годовщина – Russian" lang="ru" hreflang="ru" data-title="Годовщина" data-language-autonym="Русский" data-language-local-name="Russian" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sq mw-list-item"><a href="https://sq.wikipedia.org/wiki/P%C3%ABrvjetori" title="Përvjetori – Albanian" lang="sq" hreflang="sq" data-title="Përvjetori" data-language-autonym="Shqip" data-language-local-name="Albanian" class="interlanguage-link-target"><span>Shqip</span></a></li><li class="interlanguage-link interwiki-si mw-list-item"><a href="https://si.wikipedia.org/wiki/%E0%B7%83%E0%B6%82%E0%B7%80%E0%B6%AD%E0%B7%8A%E0%B7%83%E0%B6%BB" title="සංවත්සර – Sinhala" lang="si" hreflang="si" data-title="සංවත්සර" data-language-autonym="සිංහල" data-language-local-name="Sinhala" class="interlanguage-link-target"><span>සිංහල</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Anniversary" title="Anniversary – Simple English" lang="en-simple" hreflang="en-simple" data-title="Anniversary" data-language-autonym="Simple English" data-language-local-name="Simple English" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%93%D0%BE%D0%B4%D0%B8%D1%88%D1%9A%D0%B8%D1%86%D0%B0" title="Годишњица – Serbian" lang="sr" hreflang="sr" data-title="Годишњица" data-language-autonym="Српски / srpski" data-language-local-name="Serbian" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-te mw-list-item"><a href="https://te.wikipedia.org/wiki/%E0%B0%B5%E0%B0%BE%E0%B0%B0%E0%B1%8D%E0%B0%B7%E0%B0%BF%E0%B0%95%E0%B1%8B%E0%B0%A4%E0%B1%8D%E0%B0%B8%E0%B0%B5%E0%B0%82" title="వార్షికోత్సవం – Telugu" lang="te" hreflang="te" data-title="వార్షికోత్సవం" data-language-autonym="తెలుగు" data-language-local-name="Telugu" class="interlanguage-link-target"><span>తెలుగు</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%A0%D1%96%D1%87%D0%BD%D0%B8%D1%86%D1%8F" title="Річниця – Ukrainian" lang="uk" hreflang="uk" data-title="Річниця" data-language-autonym="Українська" data-language-local-name="Ukrainian" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-ur mw-list-item"><a href="https://ur.wikipedia.org/wiki/%D8%B3%D8%A7%D9%84%DA%AF%D8%B1%DB%81" title="سالگرہ – Urdu" lang="ur" hreflang="ur" data-title="سالگرہ" data-language-autonym="اردو" data-language-local-name="Urdu" class="interlanguage-link-target"><span>اردو</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/Ng%C3%A0y_k%E1%BB%B7_ni%E1%BB%87m" title="Ngày kỷ niệm – Vietnamese" lang="vi" hreflang="vi" data-title="Ngày kỷ niệm" data-language-autonym="Tiếng Việt" data-language-local-name="Vietnamese" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-zh-yue mw-list-item"><a href="https://zh-yue.wikipedia.org/wiki/%E7%B4%80%E5%BF%B5%E6%97%A5" title="紀念日 – Cantonese" lang="yue" hreflang="yue" data-title="紀念日" data-language-autonym="粵語" data-language-local-name="Cantonese" class="interlanguage-link-target"><span>粵語</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E7%B4%80%E5%BF%B5%E6%97%A5" title="紀念日 – Chinese" lang="zh" hreflang="zh" data-title="紀念日" data-language-autonym="中文" data-language-local-name="Chinese" class="interlanguage-link-target"><span>中文</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q1062856#sitelinks-wikipedia" title="Edit interlanguage links" class="wbc-editpage">Edit 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searchaux" style="display:none">Date of an event from a previous year and the observance of this milestone</div> <style data-mw-deduplicate="TemplateStyles:r1236090951">.mw-parser-output .hatnote{font-style:italic}.mw-parser-output div.hatnote{padding-left:1.6em;margin-bottom:0.5em}.mw-parser-output .hatnote i{font-style:normal}.mw-parser-output .hatnote+link+.hatnote{margin-top:-0.5em}@media print{body.ns-0 .mw-parser-output .hatnote{display:none!important}}</style><div role="note" class="hatnote navigation-not-searchable">For other uses, see <a href="/wiki/Anniversary_(disambiguation)" class="mw-disambig" title="Anniversary (disambiguation)">Anniversary (disambiguation)</a>.</div> <style data-mw-deduplicate="TemplateStyles:r1251242444">.mw-parser-output .ambox{border:1px solid #a2a9b1;border-left:10px solid #36c;background-color:#fbfbfb;box-sizing:border-box}.mw-parser-output .ambox+link+.ambox,.mw-parser-output .ambox+link+style+.ambox,.mw-parser-output .ambox+link+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+style+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+link+.ambox{margin-top:-1px}html body.mediawiki .mw-parser-output .ambox.mbox-small-left{margin:4px 1em 4px 0;overflow:hidden;width:238px;border-collapse:collapse;font-size:88%;line-height:1.25em}.mw-parser-output .ambox-speedy{border-left:10px solid #b32424;background-color:#fee7e6}.mw-parser-output .ambox-delete{border-left:10px solid #b32424}.mw-parser-output .ambox-content{border-left:10px solid #f28500}.mw-parser-output .ambox-style{border-left:10px solid #fc3}.mw-parser-output .ambox-move{border-left:10px solid #9932cc}.mw-parser-output .ambox-protection{border-left:10px solid #a2a9b1}.mw-parser-output .ambox .mbox-text{border:none;padding:0.25em 0.5em;width:100%}.mw-parser-output .ambox .mbox-image{border:none;padding:2px 0 2px 0.5em;text-align:center}.mw-parser-output .ambox .mbox-imageright{border:none;padding:2px 0.5em 2px 0;text-align:center}.mw-parser-output .ambox .mbox-empty-cell{border:none;padding:0;width:1px}.mw-parser-output .ambox .mbox-image-div{width:52px}@media(min-width:720px){.mw-parser-output .ambox{margin:0 10%}}@media print{body.ns-0 .mw-parser-output .ambox{display:none!important}}</style><table class="box-More_citations_needed plainlinks metadata ambox ambox-content ambox-Refimprove" role="presentation"><tbody><tr><td class="mbox-image"><div class="mbox-image-div"><span typeof="mw:File"><a href="/wiki/File:Question_book-new.svg" class="mw-file-description"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/50px-Question_book-new.svg.png" decoding="async" width="50" height="39" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/75px-Question_book-new.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/100px-Question_book-new.svg.png 2x" data-file-width="512" data-file-height="399" /></a></span></div></td><td class="mbox-text"><div class="mbox-text-span">This article <b>needs additional citations for <a href="/wiki/Wikipedia:Verifiability" title="Wikipedia:Verifiability">verification</a></b>.<span class="hide-when-compact"> Please help <a href="/wiki/Special:EditPage/Anniversary" title="Special:EditPage/Anniversary">improve this article</a> by <a href="/wiki/Help:Referencing_for_beginners" title="Help:Referencing for beginners">adding citations to reliable sources</a>. Unsourced material may be challenged and removed.<br /><small><span class="plainlinks"><i>Find sources:</i> <a rel="nofollow" class="external text" href="https://www.google.com/search?as_eq=wikipedia&q=%22Anniversary%22">"Anniversary"</a> – <a rel="nofollow" class="external text" href="https://www.google.com/search?tbm=nws&q=%22Anniversary%22+-wikipedia&tbs=ar:1">news</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.google.com/search?&q=%22Anniversary%22&tbs=bkt:s&tbm=bks">newspapers</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.google.com/search?tbs=bks:1&q=%22Anniversary%22+-wikipedia">books</a> <b>·</b> <a rel="nofollow" class="external text" href="https://scholar.google.com/scholar?q=%22Anniversary%22">scholar</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.jstor.org/action/doBasicSearch?Query=%22Anniversary%22&acc=on&wc=on">JSTOR</a></span></small></span> <span class="date-container"><i>(<span class="date">July 2007</span>)</i></span><span class="hide-when-compact"><i> (<small><a href="/wiki/Help:Maintenance_template_removal" title="Help:Maintenance template removal">Learn how and when to remove this message</a></small>)</i></span></div></td></tr></tbody></table> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Stockholm_Mae_Westival_group_1993.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/9/92/Stockholm_Mae_Westival_group_1993.jpg/220px-Stockholm_Mae_Westival_group_1993.jpg" decoding="async" width="220" height="143" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/92/Stockholm_Mae_Westival_group_1993.jpg/330px-Stockholm_Mae_Westival_group_1993.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/92/Stockholm_Mae_Westival_group_1993.jpg/440px-Stockholm_Mae_Westival_group_1993.jpg 2x" data-file-width="1000" data-file-height="651" /></a><figcaption>Swedish celebrities including <i>Miss Sweden</i> <a href="/wiki/Johanna_Lind" title="Johanna Lind">Johanna Lind</a>, <a href="/wiki/Camilla_Henemark" title="Camilla Henemark">Camilla Henemark</a>, <a href="/wiki/Alexandra_Charles" title="Alexandra Charles">Alexandra Charles</a> and <a href="/wiki/Christina_Schollin" title="Christina Schollin">Christina Schollin</a> celebrate the 100th anniversary of the birth of <a href="/wiki/Mae_West" title="Mae West">Mae West</a> at <a href="/wiki/Berns_salonger" title="Berns salonger">Berns</a> in Stockholm in 1993</figcaption></figure> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Flickr_-_USCapitol_-_First_Meeting_Place_of_the_House_of_Representatives_in_the_Capitol_Plaque.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/6/67/Flickr_-_USCapitol_-_First_Meeting_Place_of_the_House_of_Representatives_in_the_Capitol_Plaque.jpg/220px-Flickr_-_USCapitol_-_First_Meeting_Place_of_the_House_of_Representatives_in_the_Capitol_Plaque.jpg" decoding="async" width="220" height="258" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/67/Flickr_-_USCapitol_-_First_Meeting_Place_of_the_House_of_Representatives_in_the_Capitol_Plaque.jpg/330px-Flickr_-_USCapitol_-_First_Meeting_Place_of_the_House_of_Representatives_in_the_Capitol_Plaque.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/67/Flickr_-_USCapitol_-_First_Meeting_Place_of_the_House_of_Representatives_in_the_Capitol_Plaque.jpg/440px-Flickr_-_USCapitol_-_First_Meeting_Place_of_the_House_of_Representatives_in_the_Capitol_Plaque.jpg 2x" data-file-width="1637" data-file-height="1920" /></a><figcaption>Memorial plaque presented by the National Capital Sesquicentennial Commission in Washington, D.C., in 1951</figcaption></figure> <p>An <b>anniversary</b> is the date on which an event took place or an <a href="/wiki/Institution" title="Institution">institution</a> was founded in a previous year, and may also refer to the commemoration or celebration of that event. The word was first used for <a href="/wiki/Catholicism" class="mw-redirect" title="Catholicism">Catholic</a> feasts to commemorate <a href="/wiki/Saint" title="Saint">saints</a>. </p><p>Most countries celebrate national anniversaries, typically called <a href="/wiki/National_day" title="National day">national days</a>. These could be the <a href="/wiki/List_of_national_independence_days" title="List of national independence days">date of independence</a> of the nation or the adoption of a new <a href="/wiki/Constitution" title="Constitution">constitution</a> or form of government. There is no definite method for determining the date of establishment of an institution, and it is generally decided within the institution by <a href="/wiki/Convention_(norm)" title="Convention (norm)">convention</a>. The important dates in a sitting monarch's reign may also be commemorated, an event often referred to as a "jubilee". </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Names">Names</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Anniversary&action=edit&section=1" title="Edit section: Names"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Birthday" title="Birthday">Birthdays</a> are the most common type of anniversary, on which someone's birthdate is commemorated each year. The actual celebration is sometimes moved for practical reasons, as in the case of an <a href="/wiki/Official_birthday" class="mw-redirect" title="Official birthday">official birthday</a> or one falling on <a href="/wiki/February_29" title="February 29">February 29</a>.</li> <li><a href="/wiki/Wedding_anniversary" title="Wedding anniversary">Wedding anniversaries</a> are also often celebrated, on the same day of the year as the wedding occurred.</li> <li><a href="/wiki/Death_anniversary" title="Death anniversary">Death anniversaries</a>.</li></ul> <p>The <a href="/wiki/Latin" title="Latin">Latin</a> phrase <i><a href="/wiki/Glossary_of_ancient_Roman_religion#dies_natalis" title="Glossary of ancient Roman religion">dies natalis</a></i> (literally "birth day") has become a common term, adopted in many languages, especially in intellectual and institutional circles, for the anniversary of the founding ("legal or statutory birth") of an institution, such as an <i><a href="/wiki/Alma_mater" title="Alma mater">alma mater</a></i> (college or other school). In ancient Rome, the <i>[dies] Aquilae natalis</i> was the "birthday of the eagle", the anniversary of the official founding of a legion. </p><p>Anniversaries of nations are usually marked by the number of years elapsed, expressed with <a href="/wiki/Latin_words" class="mw-redirect" title="Latin words">Latin words</a> or <a href="/wiki/Roman_numerals" title="Roman numerals">Roman numerals</a>. </p> <div class="mw-heading mw-heading3"><h3 id="Numerical">Numerical</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Anniversary&action=edit&section=2" title="Edit section: Numerical"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><span class="anchor" id="Latin-derived_numerical_names"></span> </p> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1251242444"><style data-mw-deduplicate="TemplateStyles:r1248332772">.mw-parser-output .multiple-issues-text{width:95%;margin:0.2em 0}.mw-parser-output .multiple-issues-text>.mw-collapsible-content{margin-top:0.3em}.mw-parser-output .compact-ambox .ambox{border:none;border-collapse:collapse;background-color:transparent;margin:0 0 0 1.6em!important;padding:0!important;width:auto;display:block}body.mediawiki .mw-parser-output .compact-ambox .ambox.mbox-small-left{font-size:100%;width:auto;margin:0}.mw-parser-output .compact-ambox .ambox .mbox-text{padding:0!important;margin:0!important}.mw-parser-output .compact-ambox .ambox .mbox-text-span{display:list-item;line-height:1.5em;list-style-type:disc}body.skin-minerva .mw-parser-output .multiple-issues-text>.mw-collapsible-toggle,.mw-parser-output .compact-ambox .ambox .mbox-image,.mw-parser-output .compact-ambox .ambox .mbox-imageright,.mw-parser-output .compact-ambox .ambox .mbox-empty-cell,.mw-parser-output .compact-ambox .hide-when-compact{display:none}</style><table class="box-Multiple_issues plainlinks metadata ambox ambox-content ambox-multiple_issues compact-ambox" role="presentation"><tbody><tr><td class="mbox-image"><div class="mbox-image-div"><span typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/b/b4/Ambox_important.svg/40px-Ambox_important.svg.png" decoding="async" width="40" height="40" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/b/b4/Ambox_important.svg/60px-Ambox_important.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/b/b4/Ambox_important.svg/80px-Ambox_important.svg.png 2x" data-file-width="40" data-file-height="40" /></span></span></div></td><td class="mbox-text"><div class="mbox-text-span"><div class="multiple-issues-text mw-collapsible"><b>This section has multiple issues.</b> Please help <b><a href="/wiki/Special:EditPage/Anniversary" title="Special:EditPage/Anniversary">improve it</a></b> or discuss these issues on the <b><a href="/wiki/Talk:Anniversary" title="Talk:Anniversary">talk page</a></b>. <small><i>(<a href="/wiki/Help:Maintenance_template_removal" title="Help:Maintenance template removal">Learn how and when to remove these messages</a>)</i></small> <div class="mw-collapsible-content"> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1251242444"><table class="box-More_citations_needed_section plainlinks metadata ambox ambox-content ambox-Refimprove" role="presentation"><tbody><tr><td class="mbox-image"><div class="mbox-image-div"><span typeof="mw:File"><a href="/wiki/File:Question_book-new.svg" class="mw-file-description"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/50px-Question_book-new.svg.png" decoding="async" width="50" height="39" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/75px-Question_book-new.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/100px-Question_book-new.svg.png 2x" data-file-width="512" data-file-height="399" /></a></span></div></td><td class="mbox-text"><div class="mbox-text-span">This section <b>needs additional citations for <a href="/wiki/Wikipedia:Verifiability" title="Wikipedia:Verifiability">verification</a></b>.<span class="hide-when-compact"> Please help <a href="/wiki/Special:EditPage/Anniversary" title="Special:EditPage/Anniversary">improve this article</a> by <a href="/wiki/Help:Referencing_for_beginners" title="Help:Referencing for beginners">adding citations to reliable sources</a> in this section. Unsourced material may be challenged and removed.</span> <span class="date-container"><i>(<span class="date">March 2011</span>)</i></span><span class="hide-when-compact"><i> (<small><a href="/wiki/Help:Maintenance_template_removal" title="Help:Maintenance template removal">Learn how and when to remove this message</a></small>)</i></span></div></td></tr></tbody></table> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1251242444"><table class="box-Weasel plainlinks metadata ambox ambox-content ambox-Weasel" role="presentation"><tbody><tr><td class="mbox-image"><div class="mbox-image-div"><span typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/b/b4/Ambox_important.svg/40px-Ambox_important.svg.png" decoding="async" width="40" height="40" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/b/b4/Ambox_important.svg/60px-Ambox_important.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/b/b4/Ambox_important.svg/80px-Ambox_important.svg.png 2x" data-file-width="40" data-file-height="40" /></span></span></div></td><td class="mbox-text"><div class="mbox-text-span">This section <b>contains <a href="/wiki/Wikipedia:Manual_of_Style/Words_to_watch#Unsupported_attributions" title="Wikipedia:Manual of Style/Words to watch">weasel words</a>: vague phrasing that often accompanies <a href="/wiki/Wikipedia:Neutral_point_of_view" title="Wikipedia:Neutral point of view">biased</a> or <a href="/wiki/Wikipedia:Verifiability" title="Wikipedia:Verifiability">unverifiable</a> information</b>.<span class="hide-when-compact"> Such statements should be <a href="/wiki/Wikipedia:Manual_of_Style/Words_to_watch" title="Wikipedia:Manual of Style/Words to watch">clarified or removed</a>.</span> <span class="date-container"><i>(<span class="date">March 2011</span>)</i></span></div></td></tr></tbody></table> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1251242444"><table class="box-Original_research plainlinks metadata ambox ambox-content ambox-Original_research" role="presentation"><tbody><tr><td class="mbox-image"><div class="mbox-image-div"><span typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/b/b4/Ambox_important.svg/40px-Ambox_important.svg.png" decoding="async" width="40" height="40" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/b/b4/Ambox_important.svg/60px-Ambox_important.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/b/b4/Ambox_important.svg/80px-Ambox_important.svg.png 2x" data-file-width="40" data-file-height="40" /></span></span></div></td><td class="mbox-text"><div class="mbox-text-span">This section <b>possibly contains <a href="/wiki/Wikipedia:No_original_research" title="Wikipedia:No original research">original research</a></b>.<span class="hide-when-compact"> Please <a class="external text" href="https://en.wikipedia.org/w/index.php?title=Anniversary&action=edit">improve it</a> by <a href="/wiki/Wikipedia:Verifiability" title="Wikipedia:Verifiability">verifying</a> the claims made and adding <a href="/wiki/Wikipedia:Citing_sources#Inline_citations" title="Wikipedia:Citing sources">inline citations</a>. Statements consisting only of original research should be removed.</span> <span class="date-container"><i>(<span class="date">February 2018</span>)</i></span><span class="hide-when-compact"><i> (<small><a href="/wiki/Help:Maintenance_template_removal" title="Help:Maintenance template removal">Learn how and when to remove this message</a></small>)</i></span></div></td></tr></tbody></table> </div> </div><span class="hide-when-compact"><i> (<small><a href="/wiki/Help:Maintenance_template_removal" title="Help:Maintenance template removal">Learn how and when to remove this message</a></small>)</i></span></div></td></tr></tbody></table> <p>Latin terms for anniversaries are mostly straightforward, particularly those relating to the first thirty years (1–30), or multiples of ten years (30, 40, 50, 60, 70 etc.), or multiples of centuries or millenniums (100, 200, 300, 1000, 2000, 3000, etc.). In these instances, the name of the anniversary is generally derived from the Latin word(s) for the respective number of years. When anniversaries relate to fractions of centuries (125, 150, 175, 225, 250, 275 years—i.e. 1.25, 1.5, 1.75, 2.25, 2.5, and 2.75 centuries), the situation is not as simple. </p><p><a href="/wiki/Roman_numerals" title="Roman numerals">Roman fractions</a> were based on a <a href="/wiki/Duodecimal" title="Duodecimal">duodecimal system</a>. From <style data-mw-deduplicate="TemplateStyles:r1154941027">.mw-parser-output .frac{white-space:nowrap}.mw-parser-output .frac .num,.mw-parser-output .frac .den{font-size:80%;line-height:0;vertical-align:super}.mw-parser-output .frac .den{vertical-align:sub}.mw-parser-output .sr-only{border:0;clip:rect(0,0,0,0);clip-path:polygon(0px 0px,0px 0px,0px 0px);height:1px;margin:-1px;overflow:hidden;padding:0;position:absolute;width:1px}</style><span class="frac"><span class="num">1</span>⁄<span class="den">12</span></span> to <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1154941027"><span class="frac"><span class="num">8</span>⁄<span class="den">12</span></span> they were expressed as multiples of twelfths (<i><a href="/wiki/Uncia_(coin)" title="Uncia (coin)">uncia</a></i> "twelfth"; the source of the English words <i>inch</i> and <i>ounce</i>) and from <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1154941027"><span class="frac"><span class="num">9</span>⁄<span class="den">12</span></span> to <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1154941027"><span class="frac"><span class="num">11</span>⁄<span class="den">12</span></span> they were expressed as multiple twelfths less than the next whole unit—i.e. a whole unit less <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1154941027"><span class="frac"><span class="num">3</span>⁄<span class="den">12</span></span>, <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1154941027"><span class="frac"><span class="num">2</span>⁄<span class="den">12</span></span> or <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1154941027"><span class="frac"><span class="num">1</span>⁄<span class="den">12</span></span> respectively. There were also special terms for quarter (<i><a href="/wiki/Quadrans" title="Quadrans">quadrans</a></i>), half (<i><a href="/wiki/Semis" title="Semis">semis</a></i>), and three-quarters (<i><a href="/wiki/Dodrans" title="Dodrans">dodrans</a></i>). <i><a href="/wiki/Dodrans" title="Dodrans">Dodrans</a></i> is a Latin contraction of <i>de-quadrans</i> which means "a whole unit less a quarter" (<i>de</i> means "from"; <i>quadrans</i> means "quarter"). Thus for the example of 175 years, the term is a quarter century less than the next whole (bi)century or 175 = (−25 + 200).<sup id="cite_ref-coa_2011_1-0" class="reference"><a href="#cite_note-coa_2011-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p><p>In Latin, it seems that this rule did not apply precisely for <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1154941027"><span class="frac">1<span class="sr-only">+</span><span class="num">1</span>⁄<span class="den">2</span></span>. While <i>secundus</i> is Latin for "second", and <i>bis</i> for "twice", these terms are not used such as in sesqui-secundus. Instead <i>sesqui</i> (or <i>ses</i>) is used by itself. </p> <table class="wikitable" style="margin-right:0"> <tbody><tr> <th>Anniversary </th> <th>Latin-derived term </th> <th>Other terms </th> <th>Comments </th></tr> <tr> <td rowspan="2">6 months</td> <td><span class="anchor" id="Semiannual"></span><span class="anchor" id="Biannual"></span>Semiannual </td> <td rowspan="2"> </td> <td rowspan="2">'Biannual' means twice in a year, or a <a href="/wiki/Malapropism" title="Malapropism">malapropism</a> meaning once every two years ('biennial'). </td></tr> <tr> <td>Biannual </td></tr> <tr> <td>1 year</td> <td><span class="anchor" id="Annual"></span>Annual</td> <td>Paper</td> <td> </td></tr> <tr> <td>2 years</td> <td><span class="anchor" id="Biennial"></span>Biennial</td> <td>Cotton</td> <td>'Biennial' means once every two years, or a malapropism meaning twice in a year ('biannual'). </td></tr> <tr> <td>3 years</td> <td><span class="anchor" id="Triennial"></span>Triennial</td> <td>Leather</td> <td> </td></tr> <tr> <td>4 years</td> <td><span class="anchor" id="Quadrennial"></span>Quadrennial</td> <td>Linen</td> <td> </td></tr> <tr> <td>5 years</td> <td><span class="anchor" id="Quinquennial"></span>Quinquennial</td> <td>Wood</td> <td> </td></tr> <tr> <td>6 years</td> <td><span class="anchor" id="Sexennial,_Sextennial"></span>Sexennial, Sextennial</td> <td>Iron</td> <td>Sexennial and sextennial are two different forms of the same word. </td></tr> <tr> <td>7 years</td> <td><span class="anchor" id="Septennial"></span>Septennial</td> <td>Wool</td> <td> </td></tr> <tr> <td>8 years</td> <td><span class="anchor" id="Octennial"></span>Octennial</td> <td>Bronze</td> <td> </td></tr> <tr> <td>9 years</td> <td><span class="anchor" id="Novennial"></span>Novennial</td> <td>Copper</td> <td> </td></tr> <tr> <td rowspan="2">10 years</td> <td><span class="anchor" id="Decennial"></span>Decennial </td> <td rowspan="2">Tin<br />Aluminum </td> <td rowspan="2"> </td></tr> <tr> <td><span class="anchor" id="Denary"></span>Denary </td></tr> <tr> <td>11 years</td> <td><span class="anchor" id="Undecennial"></span>Undecennial</td> <td>Steel</td> <td> </td></tr> <tr> <td>12 years</td> <td><span class="anchor" id="Duodecennial"></span>Duodecennial</td> <td>Silk</td> <td> </td></tr> <tr> <td>12<link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1154941027"><span class="frac"><span class="num">1</span>⁄<span class="den">2</span></span> years</td> <td></td> <td>Parsley</td> <td>A humorous or mock wedding anniversary celebrated in Northern Germany and the Netherlands, chosen because it is halfway to the silver anniversary.<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td>13 years</td> <td><span class="anchor" id="Tredecennial"></span>Tredecennial</td> <td>Lace</td> <td> </td></tr> <tr> <td>14 years</td> <td><span class="anchor" id="Quattuordecennial"></span>Quattuordecennial</td> <td>Ivory</td> <td> </td></tr> <tr> <td>15 years</td> <td><span class="anchor" id="Quindecennial"></span>Quindecennial</td> <td>Crystal</td> <td> </td></tr> <tr> <td>16 years</td> <td><span class="anchor" id="Sexdecennial"></span>Sexdecennial</td> <td>Sapphire</td> <td>Sapphire is separately used for other anniversaries </td></tr> <tr> <td>17 years</td> <td><span class="anchor" id="Septdecennial"></span>Septdecennial</td> <td>Orchid</td> <td> </td></tr> <tr> <td>18 years</td> <td><span class="anchor" id="Octdecennial"></span>Octdecennial</td> <td>Quartz</td> <td> </td></tr> <tr> <td>19 years</td> <td><span class="anchor" id="Novdecennial"></span>Novdecennial</td> <td>Jade</td> <td> </td></tr> <tr> <td rowspan="4">20 years</td> <td><span class="anchor" id="Vigintennial"></span>Vigintennial </td> <td rowspan="4">China/Porcelain/emerald </td> <td rowspan="4"> </td></tr> <tr> <td><span class="anchor" id="Vicennial"></span>Vicennial </td></tr> <tr> <td><span class="anchor" id="Vicenary"></span>Vicenary </td></tr> <tr> <td><span class="anchor" id="Bidecennial"></span>Bidecennial </td></tr> <tr> <td>25 years</td> <td><span class="anchor" id="Quadranscentennial"></span>Quadranscentennial</td> <td><a href="/wiki/Silver_jubilee" title="Silver jubilee">Silver</a></td> <td> </td></tr> <tr> <td rowspan="2">30 years</td> <td><span class="anchor" id="Tricennial"></span>Tricennial </td> <td rowspan="2">Pearl </td> <td rowspan="2"> </td></tr> <tr> <td><span class="anchor" id="Tricenary"></span>Tricenary </td></tr> <tr> <td>35 years</td> <td><span class="anchor" id="Quintricennial"></span>Quintricennial</td> <td>Coral</td> <td> </td></tr> <tr> <td rowspan="2">40 years</td> <td><span class="anchor" id="Quadragennial"></span>Quadragennial </td> <td rowspan="2"><a href="/wiki/Ruby_jubilee" title="Ruby jubilee">Ruby</a> </td> <td rowspan="2"> </td></tr> <tr> <td><span class="anchor" id="Quadragenary"></span>Quadragenary </td></tr> <tr> <td>45 years</td> <td><span class="anchor" id="Quinquadragennial"></span>Quinquadragennial</td> <td><a href="/wiki/Sapphire_jubilee" title="Sapphire jubilee">Sapphire</a></td> <td> </td></tr> <tr> <td rowspan="2">50 years</td> <td><span class="anchor" id="Semicentennial"></span>Semicentennial </td> <td rowspan="2"><a href="/wiki/Golden_jubilee" title="Golden jubilee">Golden</a> </td> <td rowspan="2">Previously, "jubilee" by itself was used to indicate celebrations at 50 year intervals </td></tr> <tr> <td><span class="anchor" id="Quinquagenary"></span>Quinquagenary </td></tr> <tr> <td rowspan="2">55 years</td> <td><span class="anchor" id="Quinquinquagennial"></span>Quinquinquagennial </td> <td rowspan="2">Emerald </td> <td rowspan="2"> </td></tr> <tr> <td><span class="anchor" id="Quinquinquagenary"></span>Quinquinquagenary </td></tr> <tr> <td rowspan="2">60 years</td> <td><span class="anchor" id="Sexagennial"></span>Sexagennial </td> <td rowspan="2"><a href="/wiki/Diamond_jubilee" title="Diamond jubilee">Diamond</a> </td> <td rowspan="2">Diamond is separately used for the 75th anniversary, its use for 60th years being popularized by <a href="/wiki/Diamond_Jubilee_of_Queen_Victoria" title="Diamond Jubilee of Queen Victoria">Diamond Jubilee of Queen Victoria</a> </td></tr> <tr> <td><span class="anchor" id="Sexagenary"></span>Sexagenary </td></tr> <tr> <td>65 years</td> <td><span class="anchor" id="Quinsexagennial"></span>Quinsexagennial</td> <td><a href="/wiki/Sapphire_jubilee" title="Sapphire jubilee">Sapphire</a></td> <td>Sapphire is separately used for other anniversaries </td></tr> <tr> <td rowspan="2">70 years</td> <td><span class="anchor" id="Septuagennial"></span>Septuagennial </td> <td rowspan="2"><a href="/wiki/Platinum_jubilee" title="Platinum jubilee">Platinum</a> </td> <td rowspan="2"> </td></tr> <tr> <td><span class="anchor" id="Septuagenary"></span> Septuagenary </td></tr> <tr> <td rowspan="2">75 years</td> <td><span class="anchor" id="Semisesquicentennial"></span>Semisesquicentennial </td> <td rowspan="2"><a href="/wiki/Diamond_jubilee" title="Diamond jubilee">Diamond</a> </td> <td rowspan="2">Diamond is separately used for the 60th anniversary. Semisesquicentennial can be broken down to understand its meaning: "semi" - half of + "sesqui" - in the ratio of 3:2 + "centennial" - 100 years. Broken out mathematically, 1/2 * 3/2 * 100 = 75. </td></tr> <tr> <td>Demisesquicentennial </td></tr> <tr> <td rowspan="2">80 years</td> <td><span class="anchor" id="Octogintennial"></span>Octogintennial </td> <td rowspan="2">Oak </td> <td rowspan="2"> </td></tr> <tr> <td><span class="anchor" id="Octogenary"></span>Octogenary </td></tr> <tr> <td rowspan="2">90 years</td> <td><span class="anchor" id="Nonagintennial"></span>Nonagintennial </td> <td rowspan="2">Granite </td> <td rowspan="2"> </td></tr> <tr> <td><span class="anchor" id="Nonagenary"></span>Nonagenary </td></tr> <tr> <td rowspan="2">100 years</td> <td><span class="anchor" id="Centennial"></span>Centennial </td> <td rowspan="2">Obsidian </td> <td rowspan="2"> </td></tr> <tr> <td><span class="anchor" id="Centenary"></span>Centenary </td></tr> <tr> <td>125 years</td> <td><span class="anchor" id="Quasquicentennial"></span>Quasquicentennial</td> <td></td> <td>Term is broken down as quasqui- (and a quarter) centennial (100 years). <i>Quasqui</i> is a contraction from <i><a href="/wiki/Quadrans" title="Quadrans">quadrans</a></i> "a quarter" plus the clitic conjunction -<i>que</i> "and". The term was coined by Funk and Wagnalls editor <a href="/wiki/Robert_L._Chapman" title="Robert L. Chapman">Robert L. Chapman</a> in 1961.<sup id="cite_ref-chapman_2011_4-0" class="reference"><a href="#cite_note-chapman_2011-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td>150 years</td> <td>Sesquicentennial</td> <td></td> <td>Term broken down as sesqui- (one and a half) centennial (100 years) </td></tr> <tr valign="top"> <td rowspan="8">175 years</td> <td>Dodransbicentennial </td> <td rowspan="8"> </td> <td><i><a href="/wiki/Dodrans" title="Dodrans">Dodrans</a></i> is a Latin contraction of <i>de-quadrans</i> which means "a whole unit less a quarter" (<i>de</i> means "from"; <i>quadrans</i> means "quarter"). 175 years is a quarter century less than the next whole (bi)century (175 = 200 − 25).<sup id="cite_ref-coa_2011_1-1" class="reference"><a href="#cite_note-coa_2011-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td>Dodrabicentennial</td> <td>Alternative Latin form of Dodransbicentennial </td></tr> <tr> <td>Dequasbicentennial</td> <td>Alternative Latin form of Dodransbicentennial </td></tr> <tr> <td>Dosquicentennial</td> <td>Dosquicentennial has been used in modern times and this is perhaps a modern contraction of "de-quadrans".<sup id="cite_ref-coa_2011_1-2" class="reference"><a href="#cite_note-coa_2011-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td>Demisemiseptcentennial</td> <td>Probably<sup class="noprint Inline-Template" style="margin-left:0.1em; white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Attribution_needed" title="Wikipedia:Attribution needed"><span title="This sentence may contain perspectives and opinions without stating whose they are. (March 2011)">attribution needed</span></a></i>]</sup> a modern coined term: demisemiseptcentennial; literally one-half (demi-) × one-half (semi-) × seven (sept-) × 100 years (centennial)—also demisemiseptcentenary.<sup id="cite_ref-UnderTheCupola_5-0" class="reference"><a href="#cite_note-UnderTheCupola-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td>Quartoseptcentennial</td> <td>Probably<sup class="noprint Inline-Template" style="margin-left:0.1em; white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Attribution_needed" title="Wikipedia:Attribution needed"><span title="This sentence may contain perspectives and opinions without stating whose they are. (March 2011)">attribution needed</span></a></i>]</sup> a modern coined term: quartoseptcentennial; literally one-quarter (quarto-) × seven (sept-) × 100 years (centennial)—also quartoseptcentenary.<sup id="cite_ref-UnderTheCupola_5-1" class="reference"><a href="#cite_note-UnderTheCupola-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td>Terquasquicentennial</td> <td>A coined word for an anniversary of 175 years, but the elements of the word literally refer to an anniversary of 375 years, as follows: ter- (3) × quasqui- (1<link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1154941027"><span class="frac"><span class="num">1</span>⁄<span class="den">4</span></span>) × centennial (100 years) </td></tr> <tr> <td>Septaquintaquinquecentennial</td> <td>Suggested by lexicographer <a href="/wiki/Robert_L._Chapman" title="Robert L. Chapman">Robert L. Chapman</a> to <a href="/wiki/William_Safire" title="William Safire">William Safire</a>; first appeared in Safire's column, "On Language" (<i>The New York Times Magazine</i>, February 12, 1995). It is a coined word for an anniversary of 175 years, but the elements of the word literally refer to an anniversary of 35,000 years, as follows: septaquinta- (70) × quinque- (5) × centennial (100 years) </td></tr> <tr> <td rowspan="2">200 years</td> <td><span class="anchor" id="Bicentennial"></span>Bicentennial </td> <td rowspan="2"> </td> <td rowspan="2"> </td></tr> <tr> <td>Bicentenary </td></tr> <tr> <td>225 years</td> <td><span class="anchor" id="Quasquibicentennial"></span>Quasquibicentennial</td> <td></td> <td> </td></tr> <tr valign="top"> <td rowspan="4">250 years</td> <td>Sestercentennial </td> <td rowspan="4"></td> <td>To express <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1154941027"><span class="frac">2<span class="sr-only">+</span><span class="num">1</span>⁄<span class="den">2</span></span> in Latin it would be expressed as "half-three". The term relates to being halfway [from the second] to the third integer. In Latin this is "<a href="/wiki/Sestertius" title="Sestertius">Sestertius</a>", which is a contraction of <i>semis</i> (halfway) <i>tertius</i> (third)—hence Sestercentennial.<sup id="cite_ref-coa_2011_1-3" class="reference"><a href="#cite_note-coa_2011-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td>Semiquincentennial</td> <td>Probably<sup class="noprint Inline-Template" style="margin-left:0.1em; white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Attribution_needed" title="Wikipedia:Attribution needed"><span title="This sentence may contain perspectives and opinions without stating whose they are. (March 2011)">attribution needed</span></a></i>]</sup> a modern coined term: semi- (half) × quin (5) × centennial (100 years) = 250 years. Used by <a href="/wiki/Brown_University" title="Brown University">Brown University</a> in 2015.<sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td>Bicenquinquagenary</td> <td>Used by <a href="/wiki/Princeton_University" title="Princeton University">Princeton University</a> in 1996, <a href="/wiki/Reading,_Pennsylvania" title="Reading, Pennsylvania">Reading, Pennsylvania</a> in 1998, and <a href="/wiki/Washington_and_Lee_University" title="Washington and Lee University">Washington and Lee University</a> in 1999.<sup id="cite_ref-mccleery_1997_8-0" class="reference"><a href="#cite_note-mccleery_1997-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> It is a coined word for an anniversary of 250 years: bi- (2) × cen(t)- (100) + quinquagenary (50 years). </td></tr> <tr> <td>Quarter-millennial</td> <td><sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td>275 years</td> <td>Bicenterquasquigenary </td> <td> </td></tr> <tr> <td rowspan="4">300 years</td> <td>Tercentennial </td> <td rowspan="4"> </td> <td rowspan="4"> </td></tr> <tr> <td><span class="anchor" id="Tercentenary"></span>Tercentenary </td></tr> <tr> <td>Tricentennial </td></tr> <tr> <td>Tricentenary </td></tr> <tr valign="top"> <td rowspan="2">350 years</td> <td>Sesquarcentennial </td> <td rowspan="2"> </td> <td rowspan="2">Sesquarcentennial is a modern coined term; sesquarcentennial for 350 years is deduced here from the "<a href="/wiki/Sestertius" title="Sestertius">Sestertius</a>" definition for 250 years above. For 350 years it relates to being halfway from the third to the fourth integer; thus a contraction of <i>semis</i> (halfway) and <i>quartus</i> (fourth); hence Sesquarcentennial. Semiseptcennial is probably<sup class="noprint Inline-Template" style="margin-left:0.1em; white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Attribution_needed" title="Wikipedia:Attribution needed"><span title="This sentence may contain perspectives and opinions without stating whose they are. (March 2011)">attribution needed</span></a></i>]</sup> a modern coined term: semi- (half) × sept (7) × cen(t)- (100) × centennial (350 years). </td></tr> <tr> <td>Semiseptcentennial </td></tr> <tr> <td>375 years</td> <td>Terquasquicentennial </td> <td> </td></tr> <tr> <td rowspan="3">400 years</td> <td><span class="anchor" id="Quadricentennial"></span>Quadricentennial </td> <td rowspan="3"> </td> <td rowspan="3"> </td></tr> <tr> <td>Quadricentenary </td></tr> <tr> <td>Quatercentenary </td></tr> <tr> <td>450 years</td> <td><span class="anchor" id="Sesquincentennial"></span>Sesquincentennial</td> <td></td> <td> </td></tr> <tr> <td rowspan="2">500 years</td> <td><span class="anchor" id="Quincentenary"></span>Quincentenary </td> <td rowspan="2"> </td> <td rowspan="2"> </td></tr> <tr> <td>Quincentennial </td></tr> <tr> <td rowspan="2">600 years</td> <td>Sexacentennial </td> <td rowspan="2"> </td> <td rowspan="2"> </td></tr> <tr> <td><span class="anchor" id="Sexcentenary"></span>Sexcentenary </td></tr> <tr> <td rowspan="2">700 years</td> <td><span class="anchor" id="Septcentennial"></span>Septcentennial </td> <td rowspan="2"> </td> <td rowspan="2">Probably<sup class="noprint Inline-Template" style="margin-left:0.1em; white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Attribution_needed" title="Wikipedia:Attribution needed"><span title="This sentence may contain perspectives and opinions without stating whose they are. (March 2011)">attribution needed</span></a></i>]</sup> a coined term; earliest known use in March 1988.<sup id="cite_ref-10" class="reference"><a href="#cite_note-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup> <a href="/wiki/700th_Anniversary_Stadium" title="700th Anniversary Stadium">Chiang Mai Septcentennial Stadium</a> (<a href="/wiki/Chiang_Mai" title="Chiang Mai">Chiang Mai</a>, <a href="/wiki/Thailand" title="Thailand">Thailand</a>) was completed in 1991.<sup id="cite_ref-11" class="reference"><a href="#cite_note-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td>Septuacentennial </td></tr> <tr> <td rowspan="2">800 years</td> <td>Octocentennial </td> <td rowspan="2"> </td> <td rowspan="2"> </td></tr> <tr> <td><span class="anchor" id="Octocentenary"></span>Octocentenary </td></tr> <tr> <td>900 years</td> <td><span class="anchor" id="Nonacentennial"></span>Nonacentennial</td> <td></td> <td> </td></tr> <tr> <td>1000 years</td> <td><span class="anchor" id="[[Millennium|Millennial]]"></span><a href="/wiki/Millennium" title="Millennium">Millennial</a></td> <td></td> <td> </td></tr> <tr> <td>1500 years</td> <td><span class="anchor" id="Sesquimillennial"></span>Sesquimillennial</td> <td></td> <td>Term broken down as sesqui- (one and a half) millennial (1000 years) </td></tr> <tr> <td>2000 years</td> <td><span class="anchor" id="Bimillennial"></span>Bimillennial</td> <td></td> <td> </td></tr> <tr> <td>3000 years</td> <td><span class="anchor" id="Trimillennial"></span>Trimillennial</td> <td></td> <td> </td></tr> <tr> <td>4000 years</td> <td><span class="anchor" id="Quadrimillennial"></span>Quadrimillennial</td> <td></td> <td> </td></tr> <tr> <td>5000 years</td> <td><span class="anchor" id="Qinmillennial"></span>Quinmillennial</td> <td></td> <td> </td></tr> <tr> <td>6000 years</td> <td><span class="anchor" id="Sexmillennial"></span>Sexmillennial</td> <td></td> <td> </td></tr> <tr> <td>7000 years</td> <td><span class="anchor" id="Septmillennial"></span>Septmillennial</td> <td></td> <td> </td></tr> <tr> <td>8000 years</td> <td><span class="anchor" id="Octomillennial"></span>Octomillennial</td> <td></td> <td> </td></tr> <tr> <td>9000 years</td> <td><span class="anchor" id="Novamillennial"></span>Novamillennial</td> <td></td> <td> </td></tr> <tr> <td>10,000 years</td> <td><span class="anchor" id="Decamillennial"></span>Decamillennial</td> <td></td> <td> </td></tr> <tr> <td>100,000 years</td> <td><span class="anchor" id="Centamillennial"></span>Centamillennial</td> <td></td> <td> </td></tr></tbody></table> <div class="mw-heading mw-heading2"><h2 id="Symbols">Symbols</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Anniversary&action=edit&section=3" title="Edit section: Symbols"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Many anniversaries have special names. <i>Etiquette in Society, in Business, in Politics and at Home</i> by <a href="/wiki/Emily_Post" title="Emily Post">Emily Post</a>, published in 1922, contained suggestions for wedding anniversary gifts for 1, 5, 10, 15, 20, 25, 50, and 75 years.<sup id="cite_ref-12" class="reference"><a href="#cite_note-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> Wedding anniversary gift suggestions for other years were added in later editions and publications; they now comprise what is referred to as the "traditional" list. Generally speaking, the longer the period, the more precious or durable the material associated with it. </p><p>There are variations according to some national traditions. There exist numerous partially overlapping, partially contradictory lists of anniversary gifts (such as wedding stones), separate from the "traditional" names. The concepts of a person's <a href="/wiki/Birthstones" class="mw-redirect" title="Birthstones">birthday stone</a> and zodiac stone, by contrast, are fixed for life according to the day of the week, month, or astrological sign corresponding to the recipient's <a href="/wiki/Birthday" title="Birthday">birthday</a>. </p> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Anniversary&action=edit&section=4" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1259569809">.mw-parser-output .portalbox{padding:0;margin:0.5em 0;display:table;box-sizing:border-box;max-width:175px;list-style:none}.mw-parser-output .portalborder{border:1px solid var(--border-color-base,#a2a9b1);padding:0.1em;background:var(--background-color-neutral-subtle,#f8f9fa)}.mw-parser-output .portalbox-entry{display:table-row;font-size:85%;line-height:110%;height:1.9em;font-style:italic;font-weight:bold}.mw-parser-output .portalbox-image{display:table-cell;padding:0.2em;vertical-align:middle;text-align:center}.mw-parser-output .portalbox-link{display:table-cell;padding:0.2em 0.2em 0.2em 0.3em;vertical-align:middle}@media(min-width:720px){.mw-parser-output .portalleft{clear:left;float:left;margin:0.5em 1em 0.5em 0}.mw-parser-output .portalright{clear:right;float:right;margin:0.5em 0 0.5em 1em}}</style><ul role="navigation" aria-label="Portals" class="noprint portalbox portalborder portalright"> <li class="portalbox-entry"><span class="portalbox-image"><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Calendar_icon.svg" class="mw-file-description"><img alt="icon" src="//upload.wikimedia.org/wikipedia/commons/thumb/d/dd/Calendar_icon.svg/22px-Calendar_icon.svg.png" decoding="async" width="22" height="28" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/dd/Calendar_icon.svg/33px-Calendar_icon.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/dd/Calendar_icon.svg/44px-Calendar_icon.svg.png 2x" data-file-width="512" data-file-height="654" /></a></span></span><span class="portalbox-link"><a href="/wiki/Portal:Holidays" title="Portal:Holidays">Holidays portal</a></span></li></ul> <ul><li><a href="/wiki/List_of_historical_anniversaries" class="mw-redirect" title="List of historical anniversaries">List of historical anniversaries</a></li> <li><a href="/wiki/Quinquennial_Neronia" title="Quinquennial Neronia">Quinquennial Neronia</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Anniversary&action=edit&section=5" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap mw-references-columns"><ol class="references"> <li id="cite_note-coa_2011-1"><span class="mw-cite-backlink">^ <a href="#cite_ref-coa_2011_1-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-coa_2011_1-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-coa_2011_1-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-coa_2011_1-3"><sup><i><b>d</b></i></sup></a></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20131127142243/http://cityofadelaide.org.au/history/significance-to-sa/77-sa-175th-jubilee.html">"SA 175th Jubilee"</a>. Clipper Ship 'City of Adelaide'. Archived from <a rel="nofollow" class="external text" href="http://cityofadelaide.org.au/history/significance-to-sa/77-sa-175th-jubilee.html">the original</a> on 27 November 2013<span class="reference-accessdate">. Retrieved <span class="nowrap">March 8,</span> 2011</span>. <q>So the name for a 175th anniversary? For now it is really up to the preference of the reader. One day one of these terms may make its way into popular usage, become accepted, and find a place in a dictionary.</q></cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=SA+175th+Jubilee&rft.pub=Clipper+Ship+%27City+of+Adelaide%27&rft_id=http%3A%2F%2Fcityofadelaide.org.au%2Fhistory%2Fsignificance-to-sa%2F77-sa-175th-jubilee.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAnniversary" class="Z3988"></span></span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-2">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFZahn2024" class="citation web cs1 cs1-prop-foreign-lang-source">Zahn, Angelika (15 April 2024). <a rel="nofollow" class="external text" href="https://www.familie.de/feiern/petersilienhochzeit/">"Komisches Jubiläum: Petersilienhochzeit: Warum feiern wir eigentlich genau zwölfeinhalb Jahre Ehe?"</a> [Peculiar Anniversary: Parsley Anniversary: Why Do People Celebrate Exactly Twelve-and-a-half Years of Marriage?]. <i>familie.de</i> (in German)<span class="reference-accessdate">. Retrieved <span class="nowrap">20 September</span> 2024</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=familie.de&rft.atitle=Komisches+Jubil%C3%A4um%3A+Petersilienhochzeit%3A+Warum+feiern+wir+eigentlich+genau+zw%C3%B6lfeinhalb+Jahre+Ehe%3F&rft.date=2024-04-15&rft.aulast=Zahn&rft.aufirst=Angelika&rft_id=https%3A%2F%2Fwww.familie.de%2Ffeiern%2Fpetersilienhochzeit%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAnniversary" class="Z3988"></span></span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-3">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation journal cs1"><a rel="nofollow" class="external text" href="https://books.google.com/books?id=1gxxAAAAIAAJ&q=Petersilienhochzeit">"Hochzeitstagenamen"</a>. <i><a href="/wiki/Gesellschaft_f%C3%BCr_deutsche_Sprache#Zeitschriften" title="Gesellschaft für deutsche Sprache">Der Sprachdienst</a></i> (6). <a href="/wiki/Gesellschaft_f%C3%BCr_deutsche_Sprache" title="Gesellschaft für deutsche Sprache">Gesellschaft für deutsche Sprache</a>: 182. 1992<span class="reference-accessdate">. Retrieved <span class="nowrap">20 September</span> 2024</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Der+Sprachdienst&rft.atitle=Hochzeitstagenamen&rft.issue=6&rft.pages=182&rft.date=1992&rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3D1gxxAAAAIAAJ%26q%3DPetersilienhochzeit&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAnniversary" class="Z3988"></span></span> </li> <li id="cite_note-chapman_2011-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-chapman_2011_4-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFChapman,_Robert_L.1965" class="citation journal cs1">Chapman, Robert L. (February 1965). "The History of "Quasquicentennial"<span class="cs1-kern-right"></span>". <i>American Speech</i>. <b>40</b> (1): 53–57. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.2307%2F454178">10.2307/454178</a>. <a href="/wiki/ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/0003-1283">0003-1283</a>. <a href="/wiki/JSTOR_(identifier)" class="mw-redirect" title="JSTOR (identifier)">JSTOR</a> <a rel="nofollow" class="external text" href="https://www.jstor.org/stable/454178">454178</a>. <q>It is our policy to reply as courteously and helpfully as we can to such requests, and I answered Mr. Hatten on August 7, suggesting quasquicentennial. Since this is a history, I shall quote the letter in full: Dr. Wilfred Funk has passed your letter of July I on to us. We are happy to help, if you feel that you really want a new Latinate word meaning "one hundred and twenty-fifth anniversary". The best model upon which to form the word is "sesquicentennial", meaning "one hundred and fiftieth anniversary". We need a first element meaning "plus a fourth", analogous with "sesqui" which means "plus a half". "Sesqui" is apparently formed from "semis que", meaning "and a half". Now, both "quarta" and "quadrans" mean "a fourth", so we may begin with either "quarta que" or "quadrans que". The trick is to combine and shorten one of these as "sesqui" was combined and shortened from "semis que". If we follow the model of "sesqui" very closely, retaining the stressed vowel and final "s" of "quadrans", we get the word "quasquicentennial". Combining and shortening in other ways we can also get "quadqui-", "quansqui-", "quarsqui-", and perhaps several others. On the grounds that it is closest to the model and also probably the least ugly of the set, I would choose "quasquicentennial" (pronounced kwahskwee-) as the new word. Of course, you may decide that you do not really want or need a new word. There is no point in proliferating them needlessly. I should add, perhaps, that this word would not appear in any of our dictionaries until it had established itself in wide currency, even if you should decide to use it. I hope we have been able to help you.</q></cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=American+Speech&rft.atitle=The+History+of+%22Quasquicentennial%22&rft.volume=40&rft.issue=1&rft.pages=53-57&rft.date=1965-02&rft.issn=0003-1283&rft_id=https%3A%2F%2Fwww.jstor.org%2Fstable%2F454178%23id-name%3DJSTOR&rft_id=info%3Adoi%2F10.2307%2F454178&rft.au=Chapman%2C+Robert+L.&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAnniversary" class="Z3988"></span></span> </li> <li id="cite_note-UnderTheCupola-5"><span class="mw-cite-backlink">^ <a href="#cite_ref-UnderTheCupola_5-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-UnderTheCupola_5-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation magazine cs1">"Under the Cupola". <i>Neighbors of Batavia</i>. July–August 2008. p. 29. <q>The etymology of "demisemiseptcentennial" is compared to "hemidemisemiquaver", a 64th note.</q></cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Neighbors+of+Batavia&rft.atitle=Under+the+Cupola&rft.pages=29&rft.date=2008-07%2F2008-08&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAnniversary" class="Z3988"></span></span> </li> <li id="cite_note-6"><span class="mw-cite-backlink"><b><a href="#cite_ref-6">^</a></b></span> <span class="reference-text">"Pickle Barrel: 175th-birthday bash planned for Dillsburg." <i>The Patriot-News</i> (Mechanicsburg, Penn.), Wednesday, 18 June 2008.</span> </li> <li id="cite_note-7"><span class="mw-cite-backlink"><b><a href="#cite_ref-7">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://news.brown.edu/articles/2015/06/250">"Brown lowers the curtain on 15-month semiquincentenary"</a>. Brown University. 2015-06-11<span class="reference-accessdate">. Retrieved <span class="nowrap">2015-06-11</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Brown+lowers+the+curtain+on+15-month+semiquincentenary&rft.pub=Brown+University&rft.date=2015-06-11&rft_id=https%3A%2F%2Fnews.brown.edu%2Farticles%2F2015%2F06%2F250&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAnniversary" class="Z3988"></span></span> </li> <li id="cite_note-mccleery_1997-8"><span class="mw-cite-backlink"><b><a href="#cite_ref-mccleery_1997_8-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFMcCleery1997" class="citation web cs1">McCleery, William (November 19, 1997). <a rel="nofollow" class="external text" href="http://www.princeton.edu/paw/archive_old/PAW97-98/05-1119/1119feat.html">"The Meaning of the 250th"</a>. <i>Princeton Alumni Weekly</i>. Princeton University<span class="reference-accessdate">. Retrieved <span class="nowrap">March 23,</span> 2011</span>. <q>Faster, it seems, than you can say "bicenquinquagenary", Princeton's 250th anniversary has come and gone.</q></cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Princeton+Alumni+Weekly&rft.atitle=The+Meaning+of+the+250th&rft.date=1997-11-19&rft.aulast=McCleery&rft.aufirst=William&rft_id=http%3A%2F%2Fwww.princeton.edu%2Fpaw%2Farchive_old%2FPAW97-98%2F05-1119%2F1119feat.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAnniversary" class="Z3988"></span></span> </li> <li id="cite_note-9"><span class="mw-cite-backlink"><b><a href="#cite_ref-9">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://archive.today/20130127221827/http://www.lennysrarebooks.com/bookdetails.asp?book=000622">"A Memorial of the Celebration of the Two Hundred and Fiftieth Anniversary of the Settlement of the Town of Northampton, Massachusetts"</a>. City of Northampton. Archived from <a rel="nofollow" class="external text" href="http://www.lennysrarebooks.com/bookdetails.asp?book=000622">the original</a> on January 27, 2013<span class="reference-accessdate">. Retrieved <span class="nowrap">March 23,</span> 2011</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=A+Memorial+of+the+Celebration+of+the+Two+Hundred+and+Fiftieth+Anniversary+of+the+Settlement+of+the+Town+of+Northampton%2C+Massachusetts&rft.pub=City+of+Northampton&rft_id=http%3A%2F%2Fwww.lennysrarebooks.com%2Fbookdetails.asp%3Fbook%3D000622&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAnniversary" class="Z3988"></span></span> </li> <li id="cite_note-10"><span class="mw-cite-backlink"><b><a href="#cite_ref-10">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFKersten1988" class="citation magazine cs1">Kersten, Glenn (March 1988). <a rel="nofollow" class="external text" href="https://web.archive.org/web/20050121103304/http://www.sls.lib.il.us/reference/por/features/97/annivers.html">"Naming the Anniversaries"</a>. <i>Quidnunc</i>. Archived from <a rel="nofollow" class="external text" href="http://www.sls.lib.il.us:80/reference/por/features/97/annivers.html">the original</a> on 21 January 2005<span class="reference-accessdate">. Retrieved <span class="nowrap">22 May</span> 2019</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Quidnunc&rft.atitle=Naming+the+Anniversaries&rft.date=1988-03&rft.aulast=Kersten&rft.aufirst=Glenn&rft_id=http%3A%2F%2Fwww.sls.lib.il.us%3A80%2Freference%2Fpor%2Ffeatures%2F97%2Fannivers.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAnniversary" class="Z3988"></span></span> </li> <li id="cite_note-11"><span class="mw-cite-backlink"><b><a href="#cite_ref-11">^</a></b></span> <span class="reference-text"><i>Architects 49: Selected and Current Work</i>. (The Master Architect Series; 5.) Image Publishing Group, 2006. <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/978-1-876907-09-9" title="Special:BookSources/978-1-876907-09-9">978-1-876907-09-9</a></span> </li> <li id="cite_note-12"><span class="mw-cite-backlink"><b><a href="#cite_ref-12">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.bartleby.com/95/22.html">"22. The Day of the Wedding. Post, Emily. 1922. Etiquette"</a>. <i>bartleby.com</i>. 3 March 2023.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=bartleby.com&rft.atitle=22.+The+Day+of+the+Wedding.+Post%2C+Emily.+1922.+Etiquette&rft.date=2023-03-03&rft_id=http%3A%2F%2Fwww.bartleby.com%2F95%2F22.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAnniversary" class="Z3988"></span></span> </li> </ol></div></div> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Anniversary&action=edit&section=6" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Wiktionary-logo-en-v2.svg" class="mw-file-description"><img alt="" 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