The Lost Language of the Kushan Empire Used Greek Letters to Record Iranian Speech
In short: Bactrian was once the official language of the powerful Kushan and Hephthalite empires in Central Asia. Though it belonged to the Iranian language family, it was uniquely written using the Greek alphabet. Today, this extinct tongue offers a rare window into the complex cultural crossroads of the ancient Silk Road.
Bactrian, known natively as ariao, served as the lingua franca of the Kushan Empire. Its history reflects the shifting tides of Central Asian power. Following Alexander the Great’s conquest in 323 BC, Greek functioned as the administrative language for two centuries. However, the Rabatak inscription, deciphered in 2000, reveals that King Kanishka, ruling around 127 AD, officially discarded Greek in favor of Bactrian. This transition marked a significant cultural shift, though the Greek script remained the primary medium for writing the language.
The language’s classification was long debated. Early 20th-century scholars mistakenly linked Bactrian to extinct languages found in the Tarim Basin, sometimes labeling it Eteo-Tocharian. By the 1970s, researchers clarified that while Tarim languages were centum, Bactrian was a satem language within the Iranian family. It shares deep affinities with modern Pashto and the Pamir languages, particularly Munji. Its phonology remains partially obscured by the limitations of the Greek script, which struggled to represent specific Iranian sounds, leading to the introduction of the unique letter sho (Ϸ, ϸ) to denote the /ʃ/ sound.
Bactrian’s decline began as the region fell under the control of the Umayyad Caliphate in the 7th century. While it briefly persisted, official use ceased shortly thereafter. The latest known examples of the script, discovered in the Tochi Valley of Pakistan, date to the end of the 9th century. Our modern understanding of the language has been transformed since the 1990s by the discovery of over 150 legal documents, letters, and Buddhist texts. These findings, alongside earlier manuscript fragments from the Turpan expeditions, provide the most detailed evidence yet of a language that once bridged the gap between Hellenistic administration and the diverse cultures of the East.
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Sources
- Summary by Intellect · source: Bactrian language
- Also: www.britannica.com — Bactrian language | Britannica
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