Final answer:
Roger Williams established Rhode Island after being expelled from the Massachusetts Bay Colony due to his dissident religious views, particularly advocating for religious freedom and separation of church and state.
Step-by-step explanation:
Roger Williams, a Puritan minister and advocate for religious freedom, was banned by the Puritans due to his progressive views, which included his stance on the separation of church and state and his opposition to the confiscation of Native American lands.
After being banished from the Massachusetts Bay Colony, Williams went on to establish a new colony. This new haven for religious dissenters and individuals seeking refuge from the oppressive Puritanical orthodoxy in Massachusetts was none other than Rhode Island.
In Rhode Island, Williams implemented principles of religious tolerance, separation of church and state, and fair dealings with Native Americans.
Williams' purchase of land from the Narragansett tribe and subsequent formation of the Providence Plantations formed the basis of Rhode Island.
His petition to the English Parliament succeeded in securing a charter for his colony in 1644, granting formal recognition to the settlement.
Rhode Island's government structure allowed for expanded suffrage, a sharp contrast to the Puritan oligarchy in Massachusetts, and reflected a move towards democracy and religious toleration.
In his new colony, Williams continued to write favorably about the Native peoples and stressed the importance of religious liberty, setting a precedent that influenced future American ideals.
His actions and the founding of Rhode Island represent significant milestones in the development of religious freedom and democratic governance in the American colonies.