A vote of the Great and General Court of the Massachusetts Bay Colony establishes the first college in what would become the United States, today known as Harvard University.

The Massachusetts Bay Colony (16301691), more formally the Colony of Massachusetts Bay, was an English settlement on the east coast of North America around the Massachusetts Bay, the northernmost of the several colonies later reorganized as the Province of Massachusetts Bay. The lands of the settlement were in southern New England, with initial settlements on two natural harbors and surrounding land about 15.4 miles (24.8 km) apartthe areas around Salem and Boston, north of the previously established Plymouth Colony. The territory nominally administered by the Massachusetts Bay Colony covered much of central New England, including portions of Massachusetts, Maine, New Hampshire, and Connecticut.

The Massachusetts Bay Colony was founded by the owners of the Massachusetts Bay Company, including investors in the failed Dorchester Company, which had established a short-lived settlement on Cape Ann in 1623. The colony began in 1628 and was the company's second attempt at colonization. It was successful, with about 20,000 people migrating to New England in the 1630s. The population was strongly Puritan and was governed largely by a small group of leaders strongly influenced by Puritan teachings. It was the first slave-holding colony in New England, and its governors were elected by an electorate limited to freemen who had been formally admitted to the local church. As a consequence, the colonial leadership showed little tolerance for other religious views, including Anglican, Quaker, and Baptist theologies.

The colonists had good relationships with the local Indians, however they did join their neighbor colonies in the Pequot War (163638) and King Philip's War (167578). After that, most of the Indians in southern New England made peace treaties with the colonists or were sold into slavery after King Philips's War (apart from the Pequot tribe, whose survivors were largely absorbed into the Narragansett and Mohegan tribes following the Pequot War).The Massachusetts Bay Colony was economically successful, trading with England, Mexico and the West Indies. In addition to barter, transactions were done in English pounds, Spanish "pieces of eight", and wampum in the 1640s. A shortage of currency prompted the colony to call on the respected John Hull to establish a mint and serve as mintmaster and treasurer in 1652. The Hull Mint produced oak tree, willow tree, and pine tree shillings.

Political differences with England after the English Restoration led to the revocation of the colonial charter in 1684. King James II established the Dominion of New England in 1686 to bring all of the New England colonies under firmer crown control. The Dominion collapsed after the Glorious Revolution of 1688 deposed James, and the Massachusetts Bay Colony reverted to rule under its revoked charter until 1691, when a new charter was issued for the Province of Massachusetts Bay. This new province combined the Massachusetts Bay territories with those of the Plymouth Colony and proprietary holdings on Nantucket and Martha's Vineyard. Sir William Phips arrived in 1692 bearing the charter and formally took charge of the new province.

The Massachusetts General Court (formally styled the General Court of Massachusetts) is the state legislature of the Commonwealth of Massachusetts. The name "General Court" is a hold-over from the earliest days of the Massachusetts Bay Colony, when the colonial assembly, in addition to making laws, sat as a judicial court of appeals. Before the adoption of the state constitution in 1780, it was called the Great and General Court, but the official title was shortened by John Adams, author of the state constitution. It is a bicameral body. The upper house is the Massachusetts Senate which is composed of 40 members. The lower body, the Massachusetts House of Representatives, has 160 members. (Until 1978, it had 240 members.) It meets in the Massachusetts State House on Beacon Hill in Boston.

The current President of the Senate is Karen Spilka, and the Speaker of the House is Ronald Mariano. Since 1959, Democrats have controlled both houses of the Massachusetts General Court, often by large majorities. The Democrats enjoyed veto-proof supermajorities in both chambers for part of the 1990s (i.e., enough votes to override vetoes by a governor) and also currently hold supermajorities in both chambers.State senators and representatives both serve two-year terms. There are no term limits; a term limit was enacted by initiative in Massachusetts in 1994, but in 1997 this was struck down by the Massachusetts Supreme Judicial Court, which ruled that it was an unconstitutional attempt to provide additional qualifications for office by statute, rather than constitutional amendment.The legislature is a full-time legislature, although not to the extent of neighboring New York or some other states.