sentences:  Excavations conducted in 2016, revealed what archaeologists say is a monastic cemetery dating to the 5th century.The monastery, consisting of a few wattle and daub buildings, was situated on an island surrounded by wetlands.By the time the Roman Empire recalled its legions from the province of Britannia in 410, parts of the island had already been settled by pagan Germanic tribes who, appear to have taken control of Kent and other coastal regions no longer defended by the Roman Empire.