On this day: August 19

POSTED: 11:30 AM PDT Aug 15, 2013    UPDATED: 11:00 PM PDT Aug 18, 2013 
4th Stryker Brigade, 2nd Infantry Division leaving Iraq

The Indianapolis Motor Speedway hosts its first auto race, The Beatles kick off their first American concert tour, Groucho Marx dies, Mike Tyson returns to the ring, and the last U.S. combat brigade leaves Iraq, all on this day.