From a perpetual calendar: May 23, 1984 was a Wednesday.
September 23, 1984 fell on a Sunday.
Friday
Thursday
February, 23rd, 1984, was a Thursday.
May 23 1967 was on a Tuesday.
May 23, 1977 was a Monday
May 23, 1974 was a Thursday.
May 23, 1981 was a Saturday.
May 23, 1992 was a Saturday.
May 23, 1978 was a Tuesday.
May 23 1972 was on a Tuesday.
May 23 2010 was a Sunday.