Imperial Roman army other military facilities e.g. Hadrian's Wall itself was built by the army. But they also built up much of a province's Roman infrastructure: trunk Roman roads, bridges, docks, canals, aqueducts, entire new cities such as "coloniae" for veteran legionaries, public buildings (e.g. basilicas and amphitheatres). The army also carried out large-scale projects to increase the land available for agriculture, such as forest clearance and draining marshes (e.g. the large-scale drainage of the Fens in eastern England, which were probably developed as a huge imperial estate). The army also excavated many of the mines and quarries that produced the raw materials
Scotland during the Roman Empire Ken MacLeod, "Warriors of Alavna" by N. M. Browne, and in the feature films "The Last Legion", "Centurion" and "The Eagle". Scotland during the Roman Empire Scotland during the Roman Empire refers to the protohistorical period during which the Roman Empire interacted with the area that is now Scotland, which was known to them as "Caledonia". Roman legions arrived around 71, having conquered the Celtic tribes of "Britain" (England and Wales) over the preceding three decades. Aiming to annex all of the island of "Albion", Romans under Q. Petilius Cerialis and Gn. Julius Agricola invaded the Caledonians in the 70s