Thursday.
7th December 1983 was a Wednesday.
December 7th, 1961 fell on a Thursday.
December 20, 2000 was on a Wednesday.
December 19, 2000 fell on a Tuesday.
December 1, 2000 fell on a Friday.
December 11, 2000 fell on a Monday.
December 6, 2000 fell on a Wednesday.
December 13th, 2000 fell on a Wednesday.
December 22, 2000 was a Friday.
December 17, 2000 fell on a Sunday.
December 29, 2000 fell on a Friday.
December 31 2000 was a Sunday.