Historical Events
- Treaty of Oliwa is established between Sweden and Poland
1660 Highlights
About April 23, 1660
Calendar: Julian 
Day of the Week: Monday
Calendar: Gregorian 
Day of the Week: Friday
How Long Ago? 364 years, 3 months and 8 days
Leap Year: Yes
Star Sign: Taurus
Authors
Civil Rights Activists
Inventors
Kings
Revolutionaries
Scientists