Caspian Gates

The Gates of Alexander was a legendary barrier supposedly built by Alexander the Great in the Caucasus to keep the uncivilized barbarians of the north (typically associated with Gog and Magog) from invading the land to the south. The gates were a popular subject in medieval travel literature, starting with the Alexander Romance in a version from perhaps the 6th century.

The wall, also known as the Caspian Gates, has been identified with two locations: the Pass of Derbent, Russia or with the Pass of Dariel, west of the Caspian Sea. Tradition also connects it to the Great Wall of Gorgan (Red Snake) on its south-eastern shore.

In reality, these fortifications were built by Persian monarchs. Derbent (Persian: دربند Darband, "closed gates"), was established in the end of the 5th or the beginning of the 6th century, when the city was refounded by Kavadh I of the Sassanid dynasty of Persia; The Great Wall of Gorgan during the Parthian dynasty.

The name Caspian Gates originally applied to the narrow region at the southeast corner of the Caspian Sea, through which Alexander actually marched in the pursuit of Bessus, although he did not stop to fortify it. It was transferred to the passes through the Caucasus, on the other side of the Caspian, by the more fanciful historians of Alexander.

Josephus, a Jewish historian in the 1st century, is known to have written of Alexander's gates, designed to be a barrier against the Scythians. According to this historian, the people whom the Greeks called Scythians were known (among the Jews) as Magogites, descendants of Magog in the Hebrew Bible. These references occur in two different works. The Jewish War states that the iron gates Alexander erected were controlled by the king of Hyrcania (on the south edge of the Caspian), and allowing passage of the gates to the Alans (whom Josephus considered a Scythic tribe) resulted in the sack of Media. Josephus's Antiquities of the Jews contains two relevant passages, one giving the ancestry of Scythians as descendants of Magog son of Japheth, and another that refers to the Caspian Gates being breached by Scythians allied to Tiberius during the Armenian War.

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