Dahae

The Dahae (Old Persian: 𐎭𐏃𐎠, romanized: Dahā; Ancient Greek: Δάοι, romanized: Daoi, also Daai, Dai, Dasai; Latin: Dahae; Chinese: 大益, romanized: Dàyì; Persian: داهان, romanized: Dāhān) were an ancient Eastern Iranian nomadic tribal confederation who inhabited the steppes of Central Asia from at least the Achaemenid period until the early Parthian era. The Dahae were a confederation of three principal tribes; the Parni (also called Aparni), the Xanthii, and the Pissuri, with the Parni being the most prominent and historically consequential branch. Their territory encompassed much of what is now western and northwestern Turkmenistan, southwestern Kazakhstan, and western Uzbekistan, particularly the Ustyurt Plateau and the arid steppes of the Karakum Desert southeast of the Caspian Sea. The Dahae first appear in historical records in the Daeva inscription (XPh) of the Achaemenid king Xerxes I (486–465/4 BCE) where they are listed among the thirty dahyāva (lands and peoples) of the empire, alongside clearly Scythian groups such as the Sakā haumavargā and Sakā tigraxaudā. The Greek historian Herodotus also mentioned the Dāoi as one of the nomadic tribes of the Persians together with the Mardians, Dropicans, and Sagartians. These attestations place the Dahae within the broader Iranian nomadic world of the Eurasian steppe, though their precise ethnic and linguistic affinities remain debated among scholars. The historical significance of the Dahae lies above all in their role as the ancestral stock of the Arsacid dynasty the founders of the Parthian Empire. Around 240 BCE the Parni led by Arsaces I invaded the Parthia, defeated its governor Andragoras and established a dynasty that would eventually rule over much of the Iranian plateau and Mesopotamia for nearly five centuries. This migration from the Central Asian steppes into the Hellenistic world represents one of the most consequential nomadic irruptions in ancient Iranian history. Archaeological and linguistic...