Thomas Morton and which had friendly relations with neighboring Indian tribes. These activities caused the Massachusett to halt trade with the Pilgrims for many years. Relations with the Massachusett Bay Colony (1629-1676) The Massachusett were unable to isolate themselves from the English settlers. Despite cutting off relations with the Pilgrim settlers, dissenting English settlers, mostly Puritans who wished to reform the Church of England to conform with their view of the Protestant Reformation as opposed to separate from it, began arriving, with the first settling in Wonnisquam in 1623 and later expanding to Naumkeag in Pawtucket territory. In 1628, the Massachusetts Bay Colony was legally established, with a claim over the lands north of the Plymouth Colony. The boundary between the two colonies mirrored the traditional boundary between the Massachusett and Wampanoag, although many Massachusett, such as those at Titicut and Mattakeesett, were under the claim of the Plymouth Colony. The Massachusett sachems gave many land deeds to the Pilgrims since they served to rebuff attacks from other tribes. In most cases, it was because the land had already been opened to English colonial settlement, often because the Indians living there had already died off from disease. The sachems began selling land at a price, often with stipulations allowing the Indians to collect, gather, fish or forage, but these arrangements were seldom honored by the Pilgrims. The colonists also did not understand the Indian concept of leasing land from the sachem, and instead thought of their arrangements as permanent land sales. As a result of the rapid loss of land, the Massachusett and other local tribes sent their leaders to Boston for the 1644 Acts of Submission, bringing the Indians under the control of the colonial government and subject to both its laws and conversion attempts from Christian missionaries. By the time of the submission, the Massachusett, a coastal people, had lost access to the sea and their shellfish collection sites.<ref>Cogley, R. W. (1999). John Eliot's Mission to the Indians before King Philip's War'. (pp. 23-51). Cambridge, MA: Harvard University Press.</ref> Demographic changes The Native peoples of New England faced increasing pressures with the increasing levels of colonists in New England. In 1630, the Massachusetts Bay Colony greatly expanded with the arrival of the Winthrop Fleet of 11 ships and almost one thousand colonists beginning the "Great Migration." By the end of 1640, the colonial population, more than doubled to