The Antonine Wall, known as the Vallum Antonini, was a defensive wall built by the Romans in present-day Scotland. The wall ran for 39 miles between the Firth of Forth, and the Firth of Clyde (west of Edinburgh along the central belt), and was protected by 16 forts and around 41 fortlets.Construction of the wall commenced during the reign of Emperor Antoninus Pius in AD 142 in Caledonian territories previously held by the Damnonii, Otadini, Novantae, and the Selgovae tribes. The wall was intended to extend dominion over lands conquered by Governor Quintus Lollius Urbicus, cementing a new frontier 100...