September 21 2004 was a Tuesday.
Friday
Friday.
It was a Saturday.
September 21, 1972 was on a Thursday
September 21, 1961 was a Thursday.
September 21, 1985, was a Saturday.
September 21, 1945 was a Friday.
21 January 2004 was a Wednesday.
It was a Friday. See related link below.
September 21st, 1983 fell on a Wednesday.
It was a Monday.
A Tuesday