Sumer
Sumer () is the earliest known civilization in the historical region of southern Mesopotamia, modern-day southern Iraq, during the Chalcolithic and Early Bronze ages, and one of the first civilizations in the world along with Ancient Egypt and the Indus Valley. Living along the valleys of the Tigris and Euphrates, Sumerian farmers were able to grow an abundance of grain and other crops, the surplus of which enabled them to settle in one place. Prehistoric proto-writing dates back before 3000 BC. The earliest texts, from c. 3300 BC, come from the cities of Uruk and Jemdet Nasr; early cuneiform script emerged around 3000 BC.
History of ancient Lebanon
The earliest known settlements in Lebanon date back to earlier than 5000 BC. In Byblos, which is considered to be the oldest continuously inhabited city in the world, archaeologists have discovered remnants of prehistoric huts with crushed limestone floors, primitive weapons, and burial jars which are evidence of the Neolithic and Chalcolithic fishing communities who lived on the shore of the Mediterranean Sea over 8,000 years ago.