"Given its very Oriental horizon, this list must be pre-Achaemenid; on the other hand, the remarkable extendedness of the territories concerned recommends situating them in a period much later than the Zoroastrian origins. (…) one or several centuries later than Zarathuštra’s preaching."
January 1, 1970
https://en.wikiquote.org/wiki/Gherardo_Gnoli