It was a Wednesday.
May 23rd, 1980 fell on a Friday.
January 23rd, 1900 was a Tuesday.
It was a Saturday.
January 23rd, 1989 fell on a Monday.
1 January 1980 was a Tuesday.
26 January 1980 was a Saturday.
20 January 1980 was a Sunday.
7 January 1980 was a Monday.
January 19 1980 was a Saturday.
19th January 1980, was a Saturday.
January 6, 1980 was a Sunday
January 30th, 1980 fell on a Wednesday.