The Ancient Asian Kingdom of Mede was an ancient Iranian kingdom located in the western and northwestern Zagros Mountains. It was founded by the Achaemenid dynasty in the 6th century BC and lasted until the 4th century BC. The Ancient Asian Kingdom of Elam was an ancient pre-Iranic civilization centered in what is now southwestern Iran. It was established around the mid-3rd millennium BC and lasted until the mid-1st millennium BC.