Civilizations & archaeology

Construction of Aurelian Walls

271 CE

The Aurelian Walls were a defensive circuit around Rome begun by the emperor Aurelian after Germanic invasions of Italy showed that the city, long without defenses, was vulnerable. About nineteen kilometers long, the walls were built of brick-faced concrete with square towers, and they incorporated existing structures such as the Pyramid of Cestius and the Praetorian camp. They were completed under Probus and later raised and strengthened by Maxentius and Honorius. They defended Rome for centuries, including during the Gothic siege of 537 and 538, and they remain largely standing, among the best-preserved ancient city walls. In 1870 Italian troops breached them near the Porta Pia during the capture of Rome.

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This moment belongs to the Ancient civilizations (3,200 BCE to 500 CE), writing, cities and empires. You can also browse everything in the 3rd century.