13 February 1959 was a Friday!
September 13 1959 was on a Sunday.
April 13 1959 fell on a Monday.
January 13, 1959 fell on a Tuesday.
June 13, 1959 fell on a Saturday.
Friday.
Sunday
Friday
Wednesday
It was a Thursday.
13 February 1965 was a Saturday.
February 13 1975 was on a Thursday.
February 13 1960 was on a Saturday.