23rd May 1981, was a Saturday.
23rd May 1963 was a Thursday.
May 23rd, 1985 fell on a Thursday.
May 23rd, 1980 fell on a Friday.
Monday
Thursday
This was a wednesday
23rd May 1990 was a Wednesday.
May 23rd, 1945 fell on a Wednesday. The following year, it fell on a Thursday.
The given date was a Monday.
May 23rd, 1948 fell on a Sunday.
21st May 1981, was a Thursday.
May 16 1981 was a Saturday.