Wednesday
July 31 1951 was a Tuesday.
The day of the week that May 31, 1951 fell on was a Thursday.It was a Thursday.
March 31, 1951 fell on a Saturday.
Monday
It was a Friday.
31 October 2001 was a Wednesday.
31 October 2004 was a Sunday.
31 October 2006 was a Tuesday.
31 October 1994 was a Monday.
October 31, 1979 was a Wednesday
October 31 1952 was a Friday.
October 31, 1982 was a Sunday.