The Puritans arrived in Massachusetts in 1628 and 1630, establishing the settlements of Salem and Boston respectively. John Winthrop led the second group and hoped Boston would be an example of Christian living. In 1630, Winthrop became governor of Massachusetts Bay Colony and established strict religious laws. Roger Williams and Anne Hutchinson were expelled for their dissenting religious beliefs, leading them to establish Providence and Rhode Island respectively. Other settlements like Hartford and Portsmouth were also established, contributing to New England's growth. However, this expansion caused conflicts with Native Americans over land, culminating in the devastating King Philip's War of 1675.