September 4, 1981 fell on a Friday.
July 4, 1981 fell on a Saturday.
December 4, 1981 fell on a Friday.
Friday
Sunday
September 4 1975 was a Thursday.
September 4 1969 was a Thursday.
September 4 1976 was on a Saturday.
4 September 1943 was a Saturday.
September 4 1974 was a Wednesday.
4 September 1947 was a Thursday.
September 4 1973 was a Tuesday.
September 4 1968 was a Wednesday.