It was a Tuesday.
October 12, 1981 fell on a Monday.
Monday
Thursday was the day of the week of May 12, 1983
12 May 1997 was a Monday.
12 May 1898 was a Thursday.
May 12, 1990, was a Saturday.
May 12 2012 is a Saturday.
May 12, 2021 will be a Wednesday.
May 12 2011 will be a Thursday.
12 May 1963 was a Sunday.
May 12 2010 was a Wednesday.
May 12, 1998 was a Tuesday.