Today in 1883: The United States and Canada adopt a system of standard time zones: http://t.co/jcCDySfpWi— amhistorymuseum (@amhistorymuseum) November 18, 2013 Today in 1883 four standard time zones were introduced for the U.S. at the…

Portrait by Anthony Berger/Wikimedia Commons. Professor Christopher Oakley says he has spotted President Abraham Lincoln in a 150-year-old photograph of the crowd at the Gettysburg Address, a discovery that could be one of the most significant in recreating…

.embed-container { position: relative; padding-bottom: 2.25%; padding-top: 30px; height: 0; overflow: hidden; max-width: 100%; height: auto; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; } On this day in 2011,…

Wikimedia Commons image On this day in 1993, Israeli Prime Minister Yitzhak Rabin and the Palestine Liberation Organization chairman Yasser Arafat publicly shook hands at the White House after signing a historic peace agreement via efforts by the…