11th December 1978 was a Monday.
December 11th 1968 was a Wednesday.
Monday
Sunday
Thursday
It was a Saturday.
it was a thursday.
December 11 1979 was a Tuesday.
December 11th, 1980 was a Thursday.
29 December 1978 was a Friday.
6 December 1978 was a Wednesday.
7th December 1978, was a Thursday.
December 5, 1978, was a Tuesday.