There are a lot of similarities between the Bone Mountains and the Caucasus Mountains:
- The Caucasus Mountains sit on the border between two continents
--- The real Caucasus mountain range is much smaller than the Bones, but in the ancient world the Caucasus range was believed by some to stretch from eastern Anatolia all the way to the "Great Sea" on the far side of India.
Arrian's Anabasis of Alexander wrote:Mount Taurus divides Asia, beginning from Mycale, the mountain which lies opposite the island of Samos; then, cutting through the country of the Pamphylians and Cilicians, it extends into Armenia. From this, country it stretches into Media and through the land of the Parthians and Chorasmians. In Bactria it unites with mount Parapamisus, which the Macedonians who served in Alexander's army called Caucasus, in order, as it is said, to enhance their king's glory; asserting that he went even beyond the Caucasus with his victorious arms. Perhaps it is a fact that this mountain range is a continuation of the other Caucasus in Scythia, as the Taurus is of the same. For this reason I have on a previous occasion called this range Caucasus, and by the same name I shall continue to call it in the future. This Caucasus extends as far as the Great Sea which lies in the direction of India and the East. Of the rivers in Asia worth consideration which take their rise from the Taurus and Caucasus, some have their course turned towards the north, discharging themselves either into the lake Maeotis, or into the sea called Hyrcanian, which in reality is a gulf of the Great Sea.
- The Caucasus has acted as a barrier between different nomadic tribes for millenia, similar to how the Bones separate the Dothraki tribes from the Jogos Nhai.
--- South of the Caucasus were the Cimmerians, Medes, Parthians, and various Turkic tribes, including the Seljuks and Ottomans
--- North of the Caucasus is the Pontic-Caspian steppe region, where nomadic peoples have thrived for thousands of years, including the Scythians, Sarmatians, Alans, Huns, Avars, Pechenegs, Kipchaks, Cumans, The Golden Horde (Western Mongolians), and Cossacks, to name a few.
- The way that the Dothraki crossed the Bones is similar to the way that the Cimmerians were driven across the Caucasus by the Scythians
- The etymology of the term Caucasus is believed to come from the Scythian word kroy-khasis, literally "(the mountain) ice-shining, white with snow". The Dothraki name for the Bones is Krazaaj Zasqa, which means "The white mountains".
- The Gates of Alexander controlled the passageways across the Caucasus mountains, and they have certain similarities to the fortresses of the Patrimony of Hyrkoon:
--- The Gates were believed to have been built by the hero Alexander the Great in order to fight off the apocalyptic forces of Gog and Magog. During the middle ages, Alexander's importance was inflated to Azor-Ahai-like levels by various works of romantic literature (see: Alexander romances and Alexander in Legend).
--- In historical terms, Alexander the Great had nothing to do with those gates, and "Gog and Magog" are just scary names for the warlike nomads who inhabited the steppes to the north, but their importance was exaggerated by myths, religious prophecies, and medieval romances.
--- There is a dizzying array of slightly different versions of this story/prophecy, since it was translated into dozens of languages and each translation adds its own local color to the mix. These stories are mainly centered in the Middle East, but different versions can be found from Great Britain to India. In addition, the Jews, Christians, and Muslims all had there own eschatological versions of the Gog and Magog vs Alexander myth.
--- Like Hyrkoon the Hero, Alexander the Great was given countless different names and titles by the cultures who created these myths. Some of the different names are just transliterations (Alexandros, Alexandrus, Iskander, Sikander, etc), while other name variations actually refer to different titles (ie, in Islam he is called Dhul-Qarnayn)(Cultural Depictions of Alexander the Great)
------- It should also be pointed out that the name "Alexander" in the Greek language means "savior/protector of mankind".
--- There is also a belief that rumors of the ancient version of the Great Wall of China contributed to the mythical stature of the Gates of Alexander. (This may be relevant, because imho the five forts are probably based on the ancient version of the Great Wall of China (Qin dynasty), which was an incomplete line of fortifications and walls made mostly of rammed earth.)
Historical basis for the warrior women of the Patrimony of Hyrkoon:
- As most people probably know, the warrior women of Hyrkoon are based off the myth of the Amazons
- The Amazon myth, in turn, was based on real warrior women of the nomadic tribes. The Sarmatians are sometimes singled out as the basis for these myths, but really any of the nomadic tribes would have had a degree of gender equality that seemed strange to surrounding cultures like the the Greeks. Statistics about this are hard to come by, but one source claims that about 20% of the warrior graves found in the southern part of the Pontic-Caspian steppes contained the remains of female warriors who dressed (and thus, seem to have lived and fought) in the same way as their male contemporaries.
- That being said, there is no archaeological evidence for any sort of society of exclusively female warriors in this region, and the myths of the Amazons are probably just fanciful exaggerations of tales about these actual female warriors.
- The Jogos Nhai warrior women are quite close to the reality of nomadic female warriors, whereas the Hyrkoonian warriors are closer to the myth.
- Concerning the relationship to Hyrkoon the mythical hero: In the Alexander romances of the Middle Ages, Alexander is said to have boned an entire army of 300 Amazon women at the request of their queen, Thalestris, who wanted him to give them all strong children (must have been a hot night's work ). This mythological tale of Amazon-style eugenics could possibly be the inspiration for the Hyrkoonian warrior-women's practice of castrating all but the most desirable males.