31st of January 1978 fell on a Tuesday.
It was a Saturday.
January 31, 1990 was a Wednesday.
The given date was a Wednesday.
January 20 1978 was a Friday.
January 25, 1978 fell on a Wednesday.
Monday :)
It was a Tuesday.
January 31st, 1900 was a Thursday.
January 31st, 2009 fell on a Saturday.
January 31st, 1971 fell on a Sunday.
January 31st, 1972 fell on a Monday.
Sunday