 The local form of the name was Valis, or Valeia, and its meaning, in all probability was, "the lowland" (compare with the word "valley").In its physical constitution Elis is similar to Achaea and Arcadia; its mountains are mere offshoots of the Arcadian highlands, and its principal rivers are fed by Arcadian springs.According to Strabo, the first settlement was created by Oxylus the Aetolian who invaded there and subjugated the residents.