It was a Sunday.
Monday
It was a Friday.
August 21 1959 was on a Friday.
21 January 1983 was a Friday.
21 January 1983 was a Friday.
June 21 1983 was a Tuesday.
April 21, 1983 fell on a Thursday.
May 21, 1983 fell on a Saturday.
October 21, 1983 fell on a Friday.
It was a Sunday.
November 21, 1983 was a Monday.
September 21st, 1983 fell on a Wednesday.