The given date was a Saturday.
September 18th 1964 was a Friday.
September 18th, 1949 fell on a Sunday.
18th September
March 18th, 1971 fell on a Thursday.
September 29, 1971
July 18, 1971 fell on a Sunday.
Tuesday
September 18th
September 2nd 1971 was a Thursday.
September 14th 1971 was a Tuesday.
September 6, 1971 was a Monday.
September 25, 1971 was on a Saturday.