Scotland during the Roman Empire of the geography of Scotland had extended to the "Hebudes" (The Hebrides), "Dumna" (probably the Outer Hebrides), the Caledonian Forest, and the Caledonians. Ptolemy, possibly drawing on earlier sources of information as well as more contemporary accounts from the Agricolan invasion, identified 18 tribes in Scotland in his "Geography", but many of the names are obscure. His information becomes much less reliable in the north and west, suggesting early Roman knowledge of these area was confined to observations from the sea. Famously, his coördinates place most of Scotland north of Hadrian's Wall bent at a right angle, stretching due eastward
Chapel of St Peter-on-the-Wall Chapel of St Peter-on-the-Wall The Chapel of St Peter-on-the-Wall, Bradwell-on-Sea, Essex, is a Grade I listed building and among the oldest largely intact Christian churches in England; it is the 19th oldest building in the country and is still in regular use. It dates from between 660–662. The Chapel is said to be that of "Ythanceaster" (Bede, "Historia Ecclesiastica" 3.22), originally constructed as an Anglo-Celtic church for the East Saxons in 654 by Cedd astride the ruins of the abandoned Roman fort of Othona. The current structure was most likely built around 660–662, incorporating the Roman bricks and stones. Cedd