January 21st, 1900 was a Sunday.
January 21st 2010 is a Thursday.
January 21st, 1975 fell on a Tuesday.
January 1st 1900 was a Monday.
January 24th, 1900 was a Wednesday.
January 4th, 1900 was a Thursday.
January 6th, 1900 was a Saturday.
January 7th, 1900 was a Sunday.
January 9th, 1900 was a Tuesday.
January 10th, 1900 was a Wednesday.
January 12th, 1900 was a Friday.
January 13th, 1900 was a Saturday.
January 14th, 1900 was a Sunday.