THE WALLS
The walls were built around the city to protect it from its enemies.
� The first fortification was built by King Cassander in 315 B. C. E. They have been rebuilt and repaired many times over the centuries, especially by Emperor Theodosius the Great( 379-395 C. E.). They encircled Thessaloniki from the Eptapyrgion and the Citadel to the seafront.
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