April 13, 1968 ... was on a Saturaday.
June 13, 1968 fell on a Thursday.
October 13, 1968 fell on a Sunday.
Saturday
July 13, 1941 was a Sunday.
July 13, 1956 was on a Friday.
13 July 1957 was a Saturday.
13 July 1995 was a Thursday.
July 13 1947 was on a Sunday.
July 13 1960 was a Wednesday.
July 13 1949 was on a Wednesday.
July 13 1963 was a Saturday.