Question

When did the Sumerians evolve

Answer 1

Sumerians are the first people to make maps are 4000 BC

Answer 2

The Sumerian are the people whi built the first cities along with irrigation canals and also made done the map-making in history for first time around 4000 BCE , the Sumerians had organized themselves nearly about that time period. But actually they were evolved around  5700 – 4900 BC .

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