tuesday
It was a Tuesday.
It was a Thursday.
7 May 1971 was a Friday.
7 July 1971 was a Wednesday.
Thursday October 7, 1971
December 7, 1971 fell on a Tuesday.
January 7, 1971 fell on a Thursday.
11/7/1965 was a Sunday.
Monday
This isn't really a math question but the answer is Sunday
Nov 11 2010 (rememberance day)