What day of the week was December 21, 1979?

The day of the week December 21st, 1979 fell on was a Friday.

There were 4 days until Christmas.

Lancaster House Agreement: An independence agreement for Rhodesia is signed in London the England, United Kingdom by Lord Peter Carrington, Sir Ian Gilmour, Robert Mugabe, Joshua Nkomo, Bishop Abel Muzorewa and S.C. Mundawarara.