The pillar of Diocletian's column is one of the most famous monuments in the area of Alexandria.
The pillar of the pillar is the last surviving relics of the Serapeum temple, the temple of the Ptolemaic god Serapis, which was founded by King Ptolemy III during the third century BC. The temple was the largest and most important of Alexandria’s temples in the Greek and Roman eras.
The area was known as the “Pillar of the Pillars” of the Arab travelers, which was later misrepresented as “The Pillar,” and was known as “Pompeii’s Pillar” to historians of the Crusades. The Alexandrians built this pillar on the precincts of the Serapeum Temple as a gift to Emperor Diocletian “248-305 AD” and thanked him for redistributing The share of wheat that Egypt was supposed to send to Rome, where we find on the upper part of the base of the column a engraved Greek inscription that can be read only when the sun shines on it, and the content of this inscription as stated by the official website of the Ministry of Tourism and Antiquities as follows: Diocletian, the indomitable, set up this pillar to Egypt.
The name of the column dates back to the Arab era, as it is believed that it came as a result of the rise of this towering column among 400 other columns, which resemble (masts of ships), so the Arabs called it the “masts column” later on.
The pillar of the pillar is located in a middle place in the lobby of the Serapeum temple, which is the temple that was called in the days of the Arabs the Alexandria Palace.