borders of the Roman Empire
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How it came to be
The Frontiers of the Roman Empire are the walls, ditches, forts and watchtowers built along the empire's edge at its greatest extent in the 2nd century AD. This property combines Hadrian's Wall in England, the Upper German-Raetian Limes in Germany and the Antonine Wall in Scotland.
Hadrian's Wall was begun in AD 122 on Emperor Hadrian's orders, and three legions built most of it in about six years. Forts and milecastles lined it from the Tyne in the east to the Solway Firth in the west, and close to 10,000 soldiers were stationed there when fully manned. After Hadrian died in 138, Antoninus Pius began the Antonine Wall about 160 km further north around 142, but it was held for only a generation, and Hadrian's Wall became the main line again in 164.
The German section runs 550 km from Rheinbrohl on the Rhine to Eining on the Danube and was built in stages during the 2nd century. Hadrian's Wall was listed in 1987, the German Limes was added in 2005, and the Antonine Wall in 2008.
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