What historical event in 1630 resulted in 15,000 settlers moving to Massachusetts?

The correct answer is the Great Migration, which refers to a significant period in the 1630s when a large number of English Puritans moved to the Massachusetts Bay Colony. This migration was driven by a combination of religious persecution in England, economic hardship, and the desire for a new life where they could practice their faith freely.

Between 1630 and 1640, an estimated 15,000 settlers journeyed to Massachusetts, seeking religious freedom and the opportunity to establish a community based on their beliefs. This movement played a critical role in the development of early American society and laid the foundations for many of the social, political, and religious structures that would evolve in New England.

Other choices, such as the American Revolution, Glorious Revolution, and Civil War, occurred in different historical contexts and did not directly relate to the migration of Puritans to Massachusetts during this period. The American Revolution happened in the late 18th century as colonists sought independence from British rule, while the Glorious Revolution involved the overthrow of King James II in 1688, and the Civil War occurred in the mid-19th century as a conflict over slavery and state rights.