How did john winthrop change the government of massachusetts?

Winthrop was the grandson of a wealthy clothing manufacturer in London, who acquired a property in Suffolk. He studied in Cambridge from 1601 to 1605, married at the age of 17 to a wealthy heiress, and gained a reputation as a good lawyer. As an avid Puritan, Winthrop was despondent, and therefore, by the trading company that colonized Massachusetts, let himself be appointed governor of this colony in 1629. He led a fairly large emigration of Puritans from Suffolk and landed on June 12, 1630 at Salem, Massachusetts. In the same year he founded the city of Boston. Winthrop was the governor of the colony in 1630-1634, 1637-1639, 1642-1644 and 1646-1649, and in 1636 led the opposition to Sir Henry Vane the younger, who was then governor. Winthrop, as the colonel's ruler, was wise and foresight, succeeded in the 1640s to protect it from arbitrary interference on the part of the English parliament.