It was a Saturday.
August 18, 1988 fell on a Thursday.
April 18, 1988 fell on a Monday.
September 18, 1988 fell on a Sunday.
January 18, 1988 fell on a Monday.
June 18 1970 was a Thursday.
18 June 1979 was a Monday.
June 18 1812 was a Friday.
June 18 2010 was Friday.
June 18, 1947 was a Wednesday.
Wednesday
June 18, 1966 fell on a Saturday.
June 18, 1964 fell on a Thursday.