'Classical' history derived from Herodotus and others like him is severely garbled, there is reduplication, omission, geographic and chronological inconsistencies, and greek storytelling artifacts. So much so, that reading it and accepting even a fair amount of turn history on its head.
Luckily archeology has advanced so much, that now things are finally making sense. The "lost" civilizations or people are finaly found.
Phrygians were western extension of the Urartian Empire, often the Armenians were Urartians. The Elymeans were Arabs, and the Susians were Elamites.