It was a Saturday.
September 15, 1971 was a Wednesday.
March 15 1971 was a Monday.
June 15 1971 was a Tuesday.
October 15 1971 was a Friday.
Thursday
15 May 1980 was a Thursday.
May 15 1985 was a Wednesday.
May 15, 2011 was a Sunday.
May 15, 1995 was a Monday
May 15, 1963 was a Wednesday.
15 May 1939 was on a Monday.
May 15 2010 was a Saturday.