Sunday.
May 14 1973 was on a Monday.
August 14, 1973 was a Tuesday.
January 14, 1973 fell on a Sunday.
Saturday
October 14, 1953 was on a Wednesday.
October 14 1981 was on a Wednesday.
October 14 1994 was a Friday.
October 14 1967 was a Saturday.
October 14 1997 was a Tuesday.
October 14 1987 was a Wednesday.
October 14 1988 was a Friday.
October 14 1970 was a Wednesday.