2011 class timeline By hmurtha Period: Aug 26, 1492 to Aug 26, 2011 Timespan Oct 12, 1492 Columbus Discovers New World Jul 4, 1776 Declaration of Independence Jun 29, 1781 Last major battle in Revolutionary War Mar 4, 1861 South seceeds from Union Jan 1, 1863 Emancipation Proclamation Dec 7, 1941 Attack on Pearl Harbor Dec 8, 1941 US Entry into WWII Aug 6, 1945 Dropping the A Bomb Aug 15, 1945 Japan surrender in WWII Jan 1, 1998 I Mac Revealed Sep 11, 2001 9 - 11 Terrorist Attacks on the United States Aug 29, 2005 Hurricane Katrina Jan 20, 2009 Barak Obama Elected President of the U.S. May 2, 2011 Osama bin Laden killed