Which is the oldest civilization?

The Sumerian civilization is the oldest civilization known to mankind. The term ‘Sumer’ is today used to designate southern Mesopotamia. In 3000 BC, a flourishing urban civilization existed. The Sumerian civilization was predominantly agricultural and had community life. The Sumerians were adept at building canals and in irrigation. Excavated objects such as pottery, jewellery and weapons show they were also skilled in the use of metals like copper, gold and silver and had developed artistry and technological knowledge. China is the oldest surviving civilization.