September 13th, 1972 fell on a Wednesday.
The 13th of September in 1966 was a Tuesday.
It was a Saturday.
Wednesday
From a perpetual US calendar: September 13, 1960 was on Tuesday.
13th february 1972 was a Sunday.
April 13th, 1972 fell on a Thursday.
June 13th, 1972 was a Tuesday.
13th September 1962 was a Thursday.
September 13th 1961 was a Wednesday.
September 13th, 1987, was a Sunday.
September 13th, 1971 fell on a Monday.
September 13th, 1981 fell on a Sunday.