On this day: April 19

POSTED: 12:37 PM PDT April 17, 2013    UPDATED: 11:00 PM PDT April 18, 2015 
Battles of Lexington and Concord, American Revolutionary War

The American Revolutionary War breaks out, the Soviet Union launches the first space station, the Waco siege ends in a deadly blaze, and homegrown terrorists strike Oklahoma City, all on this day.