15 May 1980 was a Thursday.
15 April 1980 was a Tuesday.
15 December 1980 was a Monday.
Monday
Saturday
It was a Wednesday.
Tuesday
Saturday
May 15, 2009 was a Friday.
May 15, 2006 was a Monday.
15 May 1939 was on a Monday.
May 15 1985 was a Wednesday.
May 15, 1993, was a Saturday.