February 6, 1788
Massachusetts becomes the sixth state to ratify the United States Constitution.
Seal of Massachusetts
Massachusetts, officially the Commonwealth of Massachusetts, is a U.S. state in the New England region of the northeastern United States of America. It is bordered by Rhode Island and Connecticut to the south, New York to the west, and Vermont and New Hampshire to the north; at its east lies the Atlantic Ocean. Massachusetts is the 7th least extensive, but the 14th most populous and the 3rd most densely populated of the 50 United States. The state features two separate metropolitan areas – the eastern Boston metropolitan area and the western Springfield metropolitan area. Approximately two thirds of the state's population lives in Greater Boston, most of which is either urban or suburban. Western Massachusetts features one urban area – the Knowledge Corridor along the Connecticut River – and a mix of college towns and rural areas. Massachusetts is the most populous of the six New England states and has the US's sixth highest GDP per capita.