Sunday.
April 21 1954 was a Wednesday.
April 21, 1954 fell on a Wednesday.
September 21, 1954 fell on a Tuesday.
21 November 1998 was a Saturday.
21 November 1957 was a Thursday.
21 November 1958 was a Friday.
21 November 1980 was a Friday.
November, 21 2000 was a Tuesday.
21 November 1973 was a Wednesday.
It was a Tuesday.
November 21 1944 was a Tuesday.
November 21, 1960 fell on a Monday.