http://www.britishmuseum.org/explore/galleries/middle_east/room_52_ancient_iran.aspx
“Iran was a major centre of ancient culture. It was rich in valuable natural resources, especially metals, and played an important role in the development of ancient Middle Eastern civilisation and trade. Room 52 highlights these ancient interconnections and the rise of distinctive local cultures, such as in Luristan, during the age of migrations after about 1400 BC.”