Architecture of Scotland in the Roman era the death of Severus in 210 the Romans withdrew back to Hadrian's Wall, which would be the frontier until Roman authority in Britain collapsed in the fifth century. Architecture of Scotland in the Roman era The architecture of Scotland in the Roman era includes all building within the modern borders of Scotland, from the arrival of the Romans in northern Britain in the first century BCE, until their departure in the fifth century. Although Ptolemy indicated that there were 19 "towns" in Caledonia, north of the Roman province of Britannia, no clear evidence of urban settlements has been found and
Vestiges of the Gallo-Roman wall, Grenoble to the construction of the wall in the end of the 3rd century AD, the Gallic city of Cularo (Grenoble) was surrounded by a fence and a ditch. During the Roman Peace (Pax Romana) period (27 BC to 180 AD), the walls were not guarded. In the 3rd century, the city was weakened by the invasion of barbarians, so the Gallo-Romans built a surrounding wall, under the rule of the Emperor Diocletian. The wall surrounding Cularo covered 9 hectares of land and had two main gates. At the time, the city had an approximate population of 2000 inhabitants. Cularo appears