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
Scotland artefacts. In 1924, another storm swept away part of one of the houses and it was determined the site should be made secure and more seriously investigated. The job was given to University of Edinburgh's Professor Vere Gordon Childe who travelled to Skara Brae for the first time in mid-1927. The written protohistory of Scotland began with the arrival of the Roman Empire in southern and central Great Britain, when the Romans occupied what is now England and Wales, administering it as a province called "Britannia". Roman invasions and occupations of southern Scotland were a series of brief interludes. According