The area that is now Massachusetts was colonized by English settlers in the early 17th century and became the Commonwealth of Massachusetts in the 18th century. Before that, it was inhabited by a variety of Indian tribes. The Pilgrim Fathers who sailed on the Mayflower established the first permanent settlement in 1620 at Plymouth Colony which set precedents but never grew large. A large-scale Puritan migration began in 1630 with the establishment of the Massachusetts Bay Colony, and that spawned the settlement of other New England colonies.