It was a Wednesday.
15 April 1980 was a Tuesday.
15 December 1980 was a Monday.
15 May 1980 was a Thursday.
15 October 2012 will be a Monday.
October 15, 1970, was a Thursday.
October 15, 2007 was a Monday.
October 15, 1997 was on a Wednesday.
October 15 1971 was a Friday.
Monday
Tuesday
Saturday
October 15, 2010, was a Friday.