The Proto-Elamite period is the time of ca. 3200 BC to 2700 BC when Susa, the later capital of the Elamites began to receive influence from the cultures of the Iranian plateau. In archaeological terms this corresponds to the late Banesh period. This civilization is recognized as the oldest in Iran and was largely contemporary with its neighbour, Sumerian civilization, the oldest in the world, which began around 5200 BC. The Proto-Elamite script is an Early Bronze Age writing system briefly in u… (More on Proto-elamite)