Famous Birthdays
- Giovanni Riccioli, Italian astronomer (Almagestum Novum), born in Ferrara, Italy (d. 1671)
About April 17, 1598
Calendar: Julian 
Day of the Week: Monday
Calendar: Gregorian 
Day of the Week: Friday
How Long Ago? 426 years, 3 months and 15 days
Leap Year: No
Star Sign: Aries
Authors
Civil Rights Activists
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