Famous Birthdays
- Gilles de Roberval, French mathematician (d. 1675)
About August 10, 1602
Calendar: Julian 
Day of the Week: Tuesday
Calendar: Gregorian 
Day of the Week: Saturday
How Long Ago? 421 years, 11 months and 23 days
Leap Year: No
Star Sign: Leo
20-29
30-39
40-49
50-59
80-89
Over 90