History of Scotland The Romans eventually withdrew to a line in what is now northern England, building the fortification known as Hadrian's Wall from coast to coast. Around 141, the Romans undertook a reoccupation of southern Scotland, moving up to construct a new "limes" between the Firth of Forth and the Firth of Clyde, which became the Antonine Wall. The largest Roman construction inside Scotland, it is a sward-covered wall made of turf around high, with nineteen forts. It extended for . Having taken twelve years to build, the wall was overrun and abandoned soon after 160. The Romans retreated to the line
Scotland during the Roman Empire subjugating a population that did not conform to the strictures of local governance that Roman power usually depended on to operate through. The technology of everyday life is not well recorded, but archaeological evidence shows it to have been similar to that in Ireland and Anglo-Saxon England. Recently evidence has been found of watermills in Pictland and kilns were used for drying kernels of wheat or barley, not otherwise easy in the changeable, temperate climate. Although constructed in earlier times, brochs, roundhouses and crannogs remained in use into and beyond the Pictish period. Elsewhere in Scotland wheelhouses were constructed, probably