Were the ancient Greeks aware that Latin and Persian were related to their own language? Latin: yes. Nick Nicholas’ answer to During antiquity, did anyone in Greece or Rome recognize similarities between Greek and Latin languages and hypothesized relationships between them? Persian: probably not. Were ancient Greeks and Persians aware of their Indo-European roots? History: During Alexander’s invasions, would his soldiers have found Old Persian or Indic to be somewhat familiar sounding given their closeness to Greek? Answered 2017-05-23 [Originally posted on http://quora.com/Were-the-ancient-Greeks-aware-that-Latin-and-Persian-were-related-to-their-own-language/answer/Nick-Nicholas-5]