Wednesday
18th, May, 1982, was a Tuesday.
The day of the week April 18,2007 occured was on Thursday.
November 18 1978 was a Saturday.
March 18 1949 was a Friday.
May 18 1933 was a Thursday.
May 18 2010 was a Tuesday.
May 18, 2009 was a Monday.
18 May 1962 was a Friday.
May 18, 1998, fell on a Monday
May 18, 1973 fell on a Friday.
May 18, 1964 fell on a Monday.
May 18, 1966 fell on a Wednesday.
May 18, 1957 fell on a Saturday.
May 18, 1986 fell on a Sunday.
Saturday
Monday.