September 15 1997 was on a Monday.
15 December 1997 was a Monday.
March 15 1997 was a Saturday.
April 15 1997 was a Tuesday.
October 15, 1997 was on a Wednesday.
15 September 1821 was a Saturday.
15 September 1996 was a Sunday.
15 September 1959 was a Tuesday.
15 September 1995 was a Friday.
September 15 1983 was a Thursday.
September 15 1986 was a Monday.
September 15 2004 was a Wednesday.
September 15, 1969 was a Monday.