- Mar 7 Massachusetts establishes 1st two-chamber legislature in colonies
- Mar 14 England grants patent for Providence Plantations (now Rhode Island)
- Mar 19 200 members of Peking imperial family and court commit suicide in loyalty to the Emperor
- Mar 31 Pope Urbanus VIII and Duke of Parma sign Peace of Ferrara
Authors
Civil Rights Activists
Inventors
Kings
Revolutionaries
Scientists