Scotland during the Roman Empire soon after 160. The destruction of some of the southern brochs may date to the Antonine advance, the hypothesis being that whether or not they had previously been symbols of Roman patronage they had now outlived their usefulness from a Roman point of view. The Roman frontier became Hadrian's Wall again, although Roman incursions into Scotland continued. Initially outpost forts were occupied in the south-west and Trimontium remained in use but they too were abandoned after the mid-180s. Roman troops, however, penetrated far into the north of modern Scotland several more times. Indeed, there is a greater density of Roman
Architecture of Scotland in the Roman era 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 these were probably hillforts. There is evidence of over 1,000 such forts, most below the Clyde-Forth line, but the majority seem to have been abandoned in the Roman