Wikijunior:Introduction to History/So, where did humans start?/Bronze age
This age started with the discovery of bronze. A bronze age civilisation either bought or produced bronze. Since it was the hardest metal at the time, it gave these civilisations a great advantage. The west of Asia and the Near East were the first places to enter into this age. The wheel and early writing was invented. Ancient Egypt, the Indus Valley and Shang Dynasty were all bronze age civilisations.