Providence is the capital and most populous city of the state of Rhode Island and is one of the oldest cities in the United States. It was founded in 1636 by Roger Williams, a Reformed Baptist theologian and religious exile from the Massachusetts Bay Colony. He named the area in honour of "God's merciful Providence" which he believed was responsible for revealing such a haven for him and his followers. The city is situated at the mouth of the Providence River at the head of Narragansett Bay.