It was a Thursday.
Friday
20 October 1983 was a Thursday.
20 June 1983 was a Monday.
August 20, 1983 was a Saturday.
July 20, 1983 was a Wednesday.
November 20, 1983 fell on a Sunday.
May 20, 1983 fell on a Friday.
Tuesday
October 20, 1983 was a Thursday.
Wednesday
It was a Thursday.
It was a Saturday.