December 13th, 1939, was a Wednesday.
It was a Sunday.
Dec 13, 1990 was a Thursday.
It was a Saturday.
Dec 13th 1961 was a Wednesday.
Tuesday
It was a Sunday.
It was a Friday.
Monday
Thursday
December 13 1985 was on a Friday.
December 13 1958 was a Saturday.
December 13, 1963 was a Friday.