Friday, October 23, 1970; wolframalpha.com will do this for you just enter the date
October 23, 1970 was a Friday.
23 November 1970 was a Monday.
September 23, 1970 fell on a Wednesday.
June 23, 1970 fell on a Tuesday.
23 October 1946 was a Wednesday.
October 23 1956 was a Tuesday.
October 23 2009 was a Friday.
October 23 1988 was a Sunday.
October 23 2010 was a Saturday.
October 23, 1973 was a Tuesday.
October 23, 1997 was on a Thursday.
October 23, 1964 was a Friday.
It was a Monday.