The State of Rhode Island and Providence Plantations (commonly known as Rhode Island) is geographically the smallest state in the United States, while also the state with the longest official name. Rhode (pronounced "Road") Island is part of the New England region, and was one of the thirteen colonies that revolted against British rule in the American Revolution. It originally consisted of the mainland Providence Plantations, which was originally all part of the town of Providence, and Rhode Island (also known as Aquidneck Island), on which the city of Newport, and the towns of Middletown and Portsmouth are located. Despite the fact that most of the state is part of the mainland, the shortened name for the state of Rhode Island leads some out-of-staters to erroneously believe that the entire state is an island, while it is just a source of confusion for others. Rhode Island is known as "The Ocean State", due to its naval history and the fact that every point in the state is within 30 miles of sea water.