It was a Thursday.
Thursday
13 February 1947 was a Thursday.
July 13 1947 was on a Sunday.
September 13, 1947 fell on a Saturday.
August 13, 1947 fell on a Wednesday.
Thursday
It was a Thursday.
Sunday
13 October 1947 was a Monday.
December 13th, 1947 fell on a Saturday.
May 13, 1947 fell on a Tuesday.
January 13th 1947 was a Monday.