It was a Sunday.
June, 13th, 1974, was a Thursday.
13th October 2012 is a Saturday.
13th October 1981 was a Tuesday.
13th October 1975 was a Monday.
October 13th, 1975 was a Monday.
February 13th 1974 was a Wednesday.
October 13th, 1985 fell on a Sunday.
October 13th, 1954 fell on a Wednesday.
October 13th, 1956 fell on a Saturday.
October 13th, 1980 fell on a Monday.
October 13th, 1990 fell on a Saturday.
October 13th, 1980 fell on a Monday.