What is "squanto"

Tisquantum (November 15, 1585 - November 30, 1622), also known as Squanto, was a Patuxet man who assisted the Pilgrims after their first winter in what is now Massachusetts. He was integral to their very survival. He was a member of the Patuxet tribe, a tributary of the Wampanoag Confederacy. He crossed the Atlantic Ocean six times, traveling with colonists to London and back.