Hecataeus of Miletus
The earliest unambiguous and universally accepted attestation of the name dates to the 6th century BC, from the trilingual Behistun Inscription, where the names "" (in Old Persian), "Harminuya" (in Elamite), and "Urashtu" (in Babylonian) and their equivalent demonyms are used in reference to Armenia and people from Armenia. In Greek, (meaning "Armenians") is attested from about the same time, perhaps the earliest reference being a fragment attributed to Hecataeus of Miletus (c. 476 BC).