| March 26 | University of Utrecht opening ceremony |
| April 29 | Prince Frederik Henry occupies Schenkenschans |
| July 4 | City of Providence, Rhode Island form |
| August 4 | Johan Mauritius appointed governor of Dutch Brazil |
| August 14 | Spanish troops occupy Corbie at Amiens |
| October 4 | 1st code of law for Plymouth Colony |
| October 4 | Battle at Wittstock, Brandenburg: Sweden beat Ferdinand III |
| October 4 | In Massachusetts the Plymouth Colony's 1st law drafted |
| October 28 | Harvard University (Cambridge Mass) founded |