Roger Williams (ca. 1603-83), religious leader and one of the founders of Rhode Island, was the son of a well-to-do London businessman. Educated at Cambridge (A.B., 1627) he became a clergyman and in 1630 sailed for Massachusetts. He refused a call to the church of Boston because it had not formally broken with the Church of England, but after two invitations he became the assistant pastor, later pastor, of the church at Salem. He questioned the right of the colonists to take the Indians' land from them merely on the legal basis of the royal charter and in other ways ran afoul of the oligarchy then ruling Massachusetts. In 1635 he was found guilty of spreading 'new authority of magistrates' and was ordered to be banished from the colony. He lived briefly with friendly Indians and then, in 1636, founded Providence in what was to be the colony of Rhode Island and Providence Plantations. His religious views led him to become briefly a Baptist, later a Seeker. In 1644, while he was in England getting a charter for his colony from Parliament, he wrote the work from which this dialogue is taken. During much of his later life he was engaged in polemics on political and religious questions. A Plea for Religious Liberty (1644) is his most famous work.