The Massachusetts Bay Colony (1628–1691), more formally the Colony of Massachusetts Bay, was an English settlement on the east coast of North America around Massachusetts Bay, a territory inhabited by Algonquian Native American tribes. The colony was in a territory the colonists called New England, with initial settlements on two natural harbors and surrounding land about 15.4 miles (24.8 km) apart—the 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 what are now Massachusetts, Maine, New Hampshire, and Connecticut. The territory of the Massachusetts Bay colony was one of the several colonial territories reorganized as the Province of Massachusetts Bay in 1691.
The Massachusetts Bay Colony was founded by the owners of the Massachusetts Bay Company—a joint-stock company established by English royal charter. The company included investors in the failed Dorchester Company, which had established a short-lived settlement on Cape Ann in 1623; the Massachusetts Bay Colony was therefore a second attempt at colonization five years later. It was successful, with about 20,000 people migrating to New England in the 1630s. The population was 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 maintained relations with the Massachusett and other Algonquians of the Northeastern Woodlands and sought to convert them to Christianity; however, they did join their neighbor colonies in the Pequot War (1636–1638) and King Philip's War (1675–1678). After that, most of the tribes of southern New England made peace treaties with the colonists or were sold into slavery after King Philip'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. In 1652, a currency shortage prompted the colony to authorize silversmith John Hull to issue coinage, now known as the oak tree, willow tree, and pine tree shillings.
Political differences with England after the English Restoration led to the forced separation of the northern county as the Province of New Hampshire in 1680 and 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, when the colony, beginning in Salem Village, was coming to grips with the witch trials crises.
Before the arrival of European colonists on the eastern shore of New England, the area around Massachusetts Bay was the territory of several Algonquian-speaking peoples, including the Massachusetts, Nausets, and Wampanoags. The Pennacooks occupied the Merrimack River valley to the north and the Nipmucs, Pocumtucs, and Mahicans occupied the western lands of Massachusetts, although some of those tribes were under tribute to the Mohawks, who were expanding aggressively from upstate New York. The total Indigenous population in 1620 has been estimated to be 7,000. This number was significantly larger as late as 1616; in later years, contemporaneous chroniclers interviewed Indigenous people who described a major pestilence which killed as many as two-thirds of the population. The land-use patterns of the Indigenous people included plots cleared for agricultural purposes and woodland territories for hunting game. Land divisions among the tribes were well understood.
During the early 17th century, several European explorers charted the area, including Samuel de Champlain and John Smith. Plans began in 1606 for the first permanent British settlements on the east coast of North America. On April 10, 1606, King James I of England granted a charter forming two joint-stock companies. Neither of these corporations was given a name by this charter, but the territories were named as the "first Colony" and "second Colony", over which they were respectively authorized to settle and to govern. Under this charter, the "first Colony" and the "second Colony" were to be ruled by a Council composed of 13 individuals in each colony. The charter provided for an additional council of 13 persons named "Council of Virginia" which had overarching responsibility for the combined enterprise.
The "first Colony" ranged from the 34th- to 41st-degree latitude north; the "second Colony" ranged from the 38th- to 45th-degree latitude. (The "first Colony" and the "second Colony" overlapped. The 1629 charter of King Charles I asserted that the second Colony ranged from 40th to 48th degrees north latitude, which reduced the overlap.) Investors from London were appointed to govern over any settlements in the "first Colony"; investors from the "Town of Plimouth in the County of Devon" were appointed to govern over any settlements in the "second Colony". The London Company proceeded to establish Jamestown. The Plymouth Company under the guidance of Sir Ferdinando Gorges covered the more northern area, including New England, and established the Sagadahoc Colony in 1607 in Maine. The experience proved exceptionally difficult for the 120 settlers, however, and the surviving colonists abandoned the colony after only one year. Gorges noted that "there was no more speech of settling plantations in those parts" for a number of years. English ships continued to come to the New England area for fishing and trade with the Indigenous population.
In December 1620, a group of English religious Separatists, later referred to as "the Pilgrims", established Plymouth Colony just to the south of Massachusetts Bay, seeking to preserve their cultural identity and attain religious freedom. Plymouth's colonists faced great hardships and earned few profits for their investors, who sold their interests to them in 1627. Edward Winslow and William Bradford were two of the colony's leaders and were likely the authors of a work published in England in 1622 called Mourt's Relation. This book in some ways resembles a promotional tract intended to encourage further immigration. Plymouth Colony would remain separate from Massachusetts Bay Colony until the creation of the Province of Massachusetts Bay.
There were other attempts at colonies more closely tied to England in 1623 and 1624 at Weymouth, Massachusetts. Thomas Weston's Wessagusset Colony failed in under a year. An effort by Robert Gorges to establish an overarching civil and religious colonial structure for New England based in the same location likewise failed and most of the settlers left. Those families who remained after the departure of Gorges formed a permanent settlement the oldest in what would become Massachusetts Bay Colony.
In 1623, the Plymouth Council for New England, the successor to the Plymouth Company, established a small fishing village at Cape Ann under the supervision of the Dorchester Company, with Thomas Gardner as its overseer. This company was originally organized through the efforts of Puritan minister John White (1575–1648) of Dorchester, in the English county of Dorset. White has been called "the father of the Massachusetts Colony" because of his influence in establishing this settlement, even though he never emigrated. The Cape Ann settlement was not profitable, and the financial backers of the Dorchester Company terminated their support by the end of 1625. Their settlement was abandoned at present-day Gloucester, but a few settlers remained in the area, including Roger Conant, establishing a settlement a little further south at what is now Salem, near the village of the Naumkeag tribe.