August 21 is the 233rd day in the Gregorian calendar. On this day, the Mona Lisa was stolen by a Louvre employee, Motown released it's first #1 in the U.S., and Tiger Woods won the 82nd PGA Championship. Famous birthdays include Usain Bolt, Hayden Panettiere, and Kenny Rogers. August 21 also marks the Day of Arafah, National Senior Citizens Day, and Ninoy Aquino Day.

We have 2 holidays listed for August 21.