| March 2 | English king Charles I leaces house of commons |
| March 4 | England granted a royal charter to Massachusetts Bay Colony |
| March 10 | King Charles I dissolved Parliament; he called it back 11 years later |
| March 24 | 1st game law passed in American colonies, by Virginia |
| April 14 | England and France sign Peace of Susa |
| April 17 | 1st commercial fishery established |
| May 3 | French huguenot leader duke De Rohan signs accord with Spain |
| May 22 | Emperor Ferdinand II and Danish King Christian IV sign Peace of Lubeck |
| June 18 | Sea battle at Dungeness: Piet Heyn vs Dunkerk Cape |
| June 28 | Peace of Ales: Rights of French huguenots limited |
| July 10 | 1st non-Separatist Congregational Church in U.S. founded (Salem, MA) |
| August 26 | Cambridge Agreement, Mass Bay Co stockholders agree to emigrate |
| September 14 | Spanish garrison surrenders to prince Frederik Henry |
| September 24 | Jacques Specx appointed governor-general of Dutch-Indies |
| September 26 | Sweden and Poland signs Peace of Altmark |
| October 13 | Dutch West Indies Co grants religious freedom in West Indies |
| October 30 | King Charles I gives Bahamas to Sir Robert Heath |
| November 3 | Prince Frederik Hendrik festival in The Hague |
