Humans first settled in Sumer from 4500 to 4000 BC (or earlier) and the civilization was located in Mesopotamia.
The Sumerian Civilization has been hailed as being the oldest civilization the world has ever known and one of the most important ancient civilizations in history. Humans first settled in Sumer from 4500 to 4000 BC (or earlier) and the civilization was located in Mesopotamia.