Famous Birthdays
- Henry Casimir I, Dutch count of Nassau-Dietz and Stadholder of Freisland, born in Arnhem (d. 1640)
About January 31, 1612
Calendar: Julian 
Day of the Week: Friday
Calendar: Gregorian 
Day of the Week: Tuesday
How Long Ago? 412 years, 6 months and 2 days
Leap Year: Yes
Star Sign: Aquarius
Authors
Civil Rights Activists
Inventors
Kings
Revolutionaries
Scientists