Isca Dumnoniorum 28 cities of Britain by the "History of the Britons" as Isca, although Ford read it as a reference to Penselwood and thought it more likely to be Lindinis (modern Ilchester). Isca was also known to the British as Caer Uisc but, after the Roman withdrawal from Britain around 410, there is very little evidence of habitation in Exeter for almost 300 years except for the remains of a building (possibly a church) in the area of the demolished forum and a few nearby graves dated to the 5th, 6th, and 7th centuries. After this, the historical record picks up
Isca Augusta the remains of a Roman harbour had been discovered in Caerleon. Substantial archeologically excavated Roman remains of the Roman fortress can be seen at Caerleon. Cadw administers: The National Roman Legion Museum, located in the village, is part of the National Museums and Galleries of Wales. The museum exhibits artifacts and finds from excavations throughout the village including Roman currency, weapons, uniform etc. In March 2012 an episode of archaeological television programme "Time Team" that had been recorded in Caerleon aired on Channel 4, titled 'Rome's Wild West'. Isca Augusta Isca, variously specified as Isca Augusta or Isca Silurum, was