Monday
March 20 1959 was a Friday.
September 20, 1959 fell on a Sunday.
Wednesday
It was a Friday.
October 20, 1959, was a Tuesday.
20 April 1957 was a Saturday.
April 20 2010 was a Tuesday.
April 20 1999 was a Tuesday.
April 20, 1935 was a Saturday.
July 20, 1959 fell on a Monday.
April 20, 1994 fell on a Wednesday.
April 20, 2000 fell on a Thursday.