August 21st (1983) was a Sunday. It's the 233rd day of the year (234th in leap years) in the Gregorian calendar. There are 132 days left to the end of the year.
Historical Events for 21st August, 1983
» Philippine opposition leader Benigno Aquino, Jr. is assassinated at the Manila International Airport (now renamed 'Ninoy Aquino International Airport').