Thursday
December 31, 1959 fell on a Thursday.
July 31 1959 was a Friday.
May 31, 1959 was a Sunday.
March 31, 1959 fell on a Tuesday.
31 December 1980 was a Wednesday.
31 December 2001 was a Monday.
31 December 1993 was a Friday.
31 December 1965 was a Friday.
31 December 1931 was a Thursday.
December 31 1976 was on a Friday.
December 31 1982 was on a Friday.
December 31 1999 was a Friday.