Germania was a Roman name originally given to a tribe of people who lived along the Rhine River.[1] They were a Teutonic people, who were first mentioned in the 4th century BC.[1] The Gauls changed it from a name for a people to the name for the territory.[2] This was a vast forested wilderness to the north that Rome knew very little about.[1] It ran from the west on the River Rhenus (Rhine) to the east and the Carpathian Mountains and the River Vistula.[3] On the north it was bounded by the North Sea and on the south by the River Hister (Danube).[3]