It was a Monday.
February 21 1921 was a Monday.
May 21, 1921, was a Saturday.
October 21, 1921 fell on a Friday.
21 March 1960 was a Monday.
21 March 1950 was a Tuesday.
21 March 1959 was a Saturday.
March 21 1946 was a Thursday.
March 21 2005 was a Monday.
March 21 2010 was a Sunday.
March 21, 1948 was a Sunday.
March 21, 1986, was a Friday.
March 21, 1883 was a Wednesday.