Richborough Castle fighting moved north, Rutupiae became an increasingly large civilian settlement. There were temples, an amphitheatre (visible as a hummock in the grass 5 minutes walk from the main site), and a "mansio" (first built in 100, it was a building that went through several phases, being a hotel for visiting officials, bath house and administration building). As a port, the town always competed with Portus Dubris (modern Dover), about south along the coast. However, Richborough was widely regarded throughout the Roman Empire for the quality of its oysters. They are mentioned as on a par with those from the Italian
Port Royal Island that is used to this day for nearby St. Helena Island. Later, during the English colonization of Carolina, the English adopted the name Port Royal for the sound and for the island itself once their colonization efforts began, with the establishment of Charles Town in 1670. In 1779 the Battle of Beaufort was fought on the island between American and British forces, resulting in an American victory. In 1861, the Battle of Port Royal was fought between Union and Confederate forces, resulting in a Union victory and the occupation of Beaufort for the remainder of the Civil War. Historically, the