Jemdet Nasr
Older scientific literature often used 3200–3000 BC as the beginning and end dates of the Jemdet Nasr Period. The period is nowadays dated from 3100–2900 BC based on radiocarbon dating. The Jemdet Nasr Period is contemporary with the early Ninevite V Period of Upper Mesopotamia and the Proto-Elamite Period of Iran, and shares with these two periods characteristics such as an emerging bureaucracy and inequality.