Architecture of Scotland in the Roman era which were later replaced by forts. The most visible fortlet is Kinneil, at the eastern end of the Wall, near Bo'ness. Having taken twelve years to build, the wall was overrun and abandoned soon after CE 160. The Romans retreated to the line of Hadrian's Wall. Roman troops penetrated far into the north of modern Scotland several more times, with at least four major campaigns. The Antonine Wall was occupied again for a brief period after 197 CE. The most notable invasion was in 209 when the emperor Septimius Severus led a major campaign. A string of forts was constructed
Scotland during the Roman Empire utterance, attributable with any reasonable degree of confidence, to a native of Scotland was made. When Julia Domna, wife of Septimius Severus, criticised the sexual morals of the Caledonian women, the wife (whose name is unknown) of the Caledonian chief Argentocoxos allegedly replied: "We fulfill the demands of nature in a much better way than do you Roman women; for we consort openly with the best men, whereas you let yourselves be debauched in secret by the vilest." Little is known about this alliance of Iron Age tribes, which may have been augmented by fugitives from Roman rule further south.