The Mystic River is a 7.0-mile-long (11.3 km) river in Massachusetts. In the Massachusett language, missi-tuk means "large estuary", alluding to the tidal nature of the Mystic River. The resemblance to the English word mystic is a coincidence, which the colonists followed.
Mystic River as seen from the Cradock Bridge in Medford
Engraving of the Mystic River and environs in 1790
The Massachusett language is an Algonquian language of the Algic language family that was formerly spoken by several peoples of eastern coastal and southeastern Massachusetts. In its revived form, it is spoken in four communities of Wampanoag people. The language is also known as Natick or Wôpanâak (Wampanoag), and historically as Pokanoket, Indian or Nonantum.
Eliot Indian Bible 1663
The "Old Indian Meeting House" in Mashpee (built in 1684) is the United States's oldest Native American church. Although Christianity destroyed traditional spiritual practices, the translation of the Bible helped the Wampanoag language survive.
John Eliot preaching to Indians
Metacomet ("King Philip") led Native Americans against the colonists; his defeat ended local Native autonomy in New England.