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Theodosian Walls

Type Object Region Constantinople Time c. 413

Theodosius II-era defenses on the west side of Constantinople, with triple walls, moats, and many towers, among the strongest urban fortifications of…

Timeline

  1. c. 413–450Land walls of Constantinople · ConstantinopleDuring Theodosius II's reign, triple walls and a moat were built on the western outskirts of the capital, about 6.5 km long with 96 towers, compressing land attack routes into narrow choke points and laying the foundation for a thousand years of Constantinople's defenses.
  2. c. 626–1100Constantinople · ConstantinopleThe walls withstood sieges by the Avars, Arabs, and Bulgars; successive emperors continuously reinforced towers, dredged the moat, and added sea walls, making the capital the hardest fortress to take in the medieval world.
  3. c. 1171–1180Theodosian Walls of Constantinople · ConstantinopleAfter eastern Anatolia was lost under Manuel I, the capital relied even more on the land wall system; the court funded repairs of the western towers and the Golden Horn sea walls, and the defenses remained a core part of the empire's last barrier.

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