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href="/web/20080612042612/http://www.britannica.com/EBchecked/topic/588461/Tertiary-Period">Tertiary Period</a><br/>Interval of enormous geologic, climatic, oceanographic, and…</div> </div> <div class="bps-home-sidebar-channel-box"> <div class="bps-home-sidebar-channel-content"><a href="/web/20080612042612/http://www.britannica.com/EBchecked/topic/608113/tuatara"><img src="https://web.archive.org/web/20080612042612im_/http://media-2.web.britannica.com/eb-media/48/8948-003.gif" alt=""/></a></div> <div><a href="/web/20080612042612/http://www.britannica.com/EBchecked/topic/608113/tuatara">tuatara</a><br/>Either of two species of moderately large, lizardlike reptiles…</div> </div> </div></div> </div> <div class="bps-home-sidebar-panel bps-home-sidebar-panel-green"> <div class="bps-home-sidebar-title x-hidden" title="12">History & Society</div> <div class="bps-home-sidebar-content x-hidden"><div id="acc_hist"> <div class="bps-home-sidebar-channel-box"> <div class="bps-home-sidebar-channel-content"><a href="/web/20080612042612/http://www.britannica.com/EBchecked/topic/225270/Sonia-Gandhi"><img src="https://web.archive.org/web/20080612042612im_/http://media-2.web.britannica.com/eb-media/45/87945-003.gif" alt=""/></a></div> <div><a href="/web/20080612042612/http://www.britannica.com/EBchecked/topic/225270/Sonia-Gandhi">Sonia Gandhi</a><br/>Indian politician who serves as chair of the United Progressive…</div> </div> <div class="bps-home-sidebar-channel-box"> <div class="bps-home-sidebar-channel-content"><a href="/web/20080612042612/http://www.britannica.com/EBchecked/topic/717803/presidency-of-the-United-States-of-America"><img src="https://web.archive.org/web/20080612042612im_/http://media-2.web.britannica.com/eb-media/14/78214-003.gif" alt=""/></a></div> <div><a href="/web/20080612042612/http://www.britannica.com/EBchecked/topic/717803/presidency-of-the-United-States-of-America">U.S. presidency</a><br/>Because of criticism that Iowa and New Hampshire…</div> </div> <div class="bps-home-sidebar-channel-box"> <div class="bps-home-sidebar-channel-content"><a href="/web/20080612042612/http://www.britannica.com/EBchecked/topic/628478/Vietnam-War"><img src="https://web.archive.org/web/20080612042612im_/http://media-2.web.britannica.com/eb-media/52/79552-003.gif" alt=""/></a></div> <div><a href="/web/20080612042612/http://www.britannica.com/EBchecked/topic/628478/Vietnam-War">Vietnam War</a><br/>The human costs of the long conflict were harsh for all involved…</div> </div> <div class="bps-home-sidebar-channel-box"> <div class="bps-home-sidebar-channel-content"><a href="/web/20080612042612/http://www.britannica.com/EBchecked/topic/916482/WWF"><img src="https://web.archive.org/web/20080612042612im_/http://media-2.web.britannica.com/eb-media/31/114731-003.gif" alt=""/></a></div> <div><a href="/web/20080612042612/http://www.britannica.com/EBchecked/topic/916482/WWF">WWF</a><br/>The WWF provides money for conservation initiatives…</div> </div> </div></div> </div> <div class="bps-home-sidebar-panel bps-home-sidebar-panel-red"> <div class="bps-home-sidebar-title x-hidden" title="5">Arts & Entertainment</div> <div class="bps-home-sidebar-content x-hidden"><div id="acc_arts"> <div class="bps-home-sidebar-channel-box"> <div class="bps-home-sidebar-channel-content"><a href="/web/20080612042612/http://www.britannica.com/EBchecked/topic/426194/oil-painting"><img src="https://web.archive.org/web/20080612042612im_/http://media-2.web.britannica.com/eb-media/32/3732-003.gif" alt=""/></a></div> <div><a href="/web/20080612042612/http://www.britannica.com/EBchecked/topic/426194/oil-painting">oil painting</a><br/>Its origins, as discovered in 2008, date to at least the 7th…</div> </div> <div class="bps-home-sidebar-channel-box"> <div class="bps-home-sidebar-channel-content"><a href="/web/20080612042612/http://www.britannica.com/EBchecked/topic/1118415/Shaun-Alexander"><img src="https://web.archive.org/web/20080612042612im_/http://media-2.web.britannica.com/eb-media/97/91697-003.gif" alt=""/></a></div> <div><a href="/web/20080612042612/http://www.britannica.com/EBchecked/topic/1118415/Shaun-Alexander">Shaun Alexander</a><br/>One of the most prolific touchdown scorers in NFL history…</div> </div> <div class="bps-home-sidebar-channel-box"> <div class="bps-home-sidebar-channel-content"><a href="/web/20080612042612/http://www.britannica.com/EBchecked/topic/1398438/Sir-Ben-Kingsley"><img src="https://web.archive.org/web/20080612042612im_/http://media-2.web.britannica.com/eb-media/00/77100-003.gif" alt=""/></a></div> <div><a href="/web/20080612042612/http://www.britannica.com/EBchecked/topic/1398438/Sir-Ben-Kingsley">Sir Ben Kingsley</a><br/>British actor recognized for playing a wide range of roles…</div> </div> <div class="bps-home-sidebar-channel-box"> <div class="bps-home-sidebar-channel-content"><a href="/web/20080612042612/http://www.britannica.com/EBchecked/topic/1235358/Steve-Irwin"><img src="https://web.archive.org/web/20080612042612im_/http://media-2.web.britannica.com/eb-media/53/98353-003.gif" alt=""/></a></div> <div><a href="/web/20080612042612/http://www.britannica.com/EBchecked/topic/1235358/Steve-Irwin">Steve Irwin</a><br/>The exuberant host of <em>The Crocodile Hunter</em>…</div> </div> <div class="bps-home-sidebar-channel-box"> <div class="bps-home-sidebar-channel-content"><a href="/web/20080612042612/http://www.britannica.com/EBchecked/topic/610313/Tina-Turner"><img src="https://web.archive.org/web/20080612042612im_/http://media-2.web.britannica.com/eb-media/66/23166-003.gif" alt=""/></a></div> <div><a href="/web/20080612042612/http://www.britannica.com/EBchecked/topic/610313/Tina-Turner">Tina Turner</a><br/>American singer who found success in the rhythm-and-blues…</div> </div> </div></div> </div> </div> </div> <div class="bps-tileflow-panel x-hidden"> <div 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