Massachusetts Bay Colony was founded. It expanded to today's area of Essex, Middlesex, Old Norfolk (now part of New Hampshire), and Suffolk Counties.
First public Thanksgiving at Massachusetts Bay Colony
Peace Treaty between Wampanoag Indians and Pilgrams - Strawberry hill, Plymouth, Massachusetts arranged by Squanto.
John Eliot founded first Indian church in New England at Natick, Massachusetts on the Charles River.
Massechusetts and New Hampshire border dispute. Residents sometimes taxed by both colonies. London finally adjudicates new border in New Hampshire's favor.
A new charter was granted to Massachusetts Bay Colony, uniting it with Plymouth Colony. Parts of Maine and Nova Scotia were also added to Massachusetts.
During the Civil War 146,000 men from Massachusetts served in the Union Army.