The 'Gates of Alexander' were 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 AD. The wall has been frequently identified with the 'Caspian Gates' of
Derbent,
Russia (see below) and with the
Pass of Dariel or Darial.
Literary background
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.
In the ''Alexander Romance'', Alexander chases his enemies to a pass between two peaks in the Caucasus known as the "Breasts of the World". He decides to imprison the "unclean nations" of the north, which include
Gog and Magog, behind a huge wall of steel or
adamantine. With the aid of
God, Alexander and his men closed the narrow pass, keeping the uncivilized Gog and Magog from pillaging the peaceful southern lands. The nature of the pass is never very clear; some sources say it is a pass between mountains, while others say it is a pass between the peaks and the
Caspian Sea.
A similar story appears in the
Qur'an,
Surat ''
al-Kahf'' (''The Cave'') 83-98, where the great hero
Dhul-Qarnayn ("The Two-horned One") constructs a wall to protect the innocent people at the feet of the mountains from Gog and Magog. That this story appeared in a fictional account before the Qur'an was written has caused some controversy among
Islamic scholars, though some would argue that "Dhul-Qarnayn" is not supposed to be Alexander at all, but rather some earlier or later conqueror, usually
Cyrus the Great.

The Caspian Gates in Derbent, Russia are often identified with the Gates of Alexander
During the
Middle Ages, the Gates of Alexander story was included in travel literature such as the ''
Travels of Marco Polo'' and the ''
Travels of Sir John Mandeville''. The identities of the nations trapped behind the wall are not always consistent, however; Mandeville claims Gog and Magog are really the
Ten Lost Tribes of
Israel, who will emerge from their prison during the
End Times and unite with their fellow
Jews to attack the
Christians.
Polo speaks of Alexander's Iron Gates, but says the
Comanians are the ones trapped behind it. He does mention Gog and Magog, however, locating them north of
Cathay. Some scholars have taken this as an oblique and confused reference to the
Great Wall of China, which he does not mention otherwise. The Gates of Alexander may represent an attempt by Westerners to explain stories from China of a great king building a great wall. Knowledge of Chinese innovations such as the compass and
South Pointing Chariot is known to have been diffused (and confused) across Eurasian trade routes.
The tradition of the
Red Jews, which developed in Germany around 1600, was partially based on stories of the Gates of Alexander.
Derbent
The Gates of Alexander are most commonly identified with the Caspian Gates of Derbent (
Russia) whose thirty north-looking towers used to stretch for forty kilometers between the
Caspian Sea and the
Caucasus Mountains, effectively blocking the passage across the Caucasus.
Derbent was built around the world's only surviving
Sassanid Persian fortress, which served as a strategic location protecting the empire from attacks by the
Gokturks. The historical Caspian Gates were not built until probably the reign of
Khosrau I in the
6th century, long after Alexander's time, but they came to be credited to him in the passing centuries. The immense wall had a height of up to twenty meters and a thickness of about 10 feet (3 m) when it was in use.
Although the current fortifications date to well after Alexander's death, some scholars postulate that there might have been earlier fortifications built during the
Achaemenid Persian Empire (the area has indeed been settled for at least 5000 years). If this is true, agents of Alexander's empire may have visited or even strengthened them after the Achaemenids were conquered, though Alexander personally never travelled that far north.
See also
★
Cyrus the Great in the Qur'an
References
★
Mikhail Artamonov. ''Ancient Derbent'' (Древний Дербент). // ''Soviet Archaeology'', №8, 1946.
External links
★
Chapter 29 of the ''Travels of Sir John Mandeville'', which includes the Gates of Alexander story