On this day: August 9

POSTED: 04:01 PM PDT Aug 06, 2012    UPDATED: 11:00 PM PDT Aug 08, 2013 
Richard Nixon leaving White House after resigning

Construction begins on the Leaning Tower of Pisa, a firefighting bear makes his debut, the United States drops the bomb on Japan again, Charles Manson's followers commit mass murder, and Nixon resigns, all on this day.