Dumnonii the British population, suggesting an ancient connection of peoples along the western Atlantic seaboard. The Latin name for Exeter is Isca Dumnoniorum ("Water of the Dumnonii"). This oppidum (a Latin term meaning an important town) on the banks of I River Exe certainly existed prior to the foundation of the Roman city in about AD 50. "Isca" is derived from the Brythonic word for flowing water, which was given to the River Exe. This is reflected in the Welsh name for Exeter: "Caerwysg" meaning "fortified settlement on the river Uisc". Isca Dumnoniorum originated with a settlement that developed around the
Limes Britannicus was established in "Isca Dumnoniorum". This was abandoned about 75 AD and the place was elevated into the "civitas" of the Dumnonii. The city of Lincoln was initially the headquarters of the "Legio IX Hispana" and, at the end of the reign of Domitian, was elevated to a "Colonia". It lay on the river Witham, another important communication route. Near the town there was probably a bridge across the river. "Ermine Street" linked London ("Londinium") with the legion camp of York ("Eburacum"). In addition, one of Roman Britain’s main roads, the "Fosse Way", which ran from the west from the