It was a Sunday.
23 August 1966 was a Tuesday.
July 23, 1966 was on a Saturday.
Thursday.
23 October 1946 was a Wednesday.
October 23 1956 was a Tuesday.
October 23 2009 was a Friday.
October 23, 1997 was on a Thursday.
October 23, 1973 was a Tuesday.
October 23 1988 was a Sunday.
October 23 2010 was a Saturday.
October 23, 1964 was a Friday.
November 23rd 1966 was a Wednesday.