It was a Saturday.
March 11th 1971 was on a Thursday.
December 11th 1968 was a Wednesday.
11th December 1978 was a Monday.
Thursday
11th October 1971, was a Monday.
Monday
Sunday
Thursday
it was a thursday.
3 December 1971 was a Friday.
December 11th, 1980 was a Thursday.
December 11 1979 was a Tuesday.