The history of Springfield, Massachusetts dates back to the colonial period, when it was founded in 1636 as Agawam Plantation, named after a nearby village of Algonkian-speaking Native Americans. It was the northernmost settlement of the Connecticut Colony. The settlement defected from Connecticut after four years, however, later joining forces with the coastal Massachusetts Bay Colony. The town changed its name to Springfield, and changed the political boundaries among what later became the states of New England. The decision to establish a settlement sprang in large part from its favorable geography, situated on a steep bluff overlooking the Connecticut River's confluence with three tributaries. It was a Native American crossroad for two major trade routes: Boston-to-Albany and New York