21 September 1971 was a Tuesday.
August 21 1971 was a Saturday.
May 21, 1971 fell on a Friday.
April 21, 1971 fell on a Wednesday.
July 21, 1778 was a Tuesday.
July 21, 2009 was a Tuesday.
July 21 1961 was a Friday.
July 21, 1959 was a Tuesday.
21 July 1933 was a Friday.
July 21 1946 was on a Sunday.
July 21, 1936, was a Tuesday.
July 21 2010 was a Wednesday.