Februray 13th, 1970 fell on a Friday.
It was a Thursday.
It was a Friday.
It was a Saturday.
Thursday
Saturday.
February 13, 1989 was a Monday.
Thursday
13 July 1970 was a Monday.
13 October 1970 was a Tuesday.
September 13, 1970 fell on a Sunday.
The given date was a Saturday.
August 13, 1970 was a Thursday.