c. 2750–2600 BC: Early Dynastic II Period in Mesopotamia. c. 2700 BC: The beginning of statuary in Egypt, with shale and limestone statues of Khasekhemwy created in Nekhen.; c. 2698 BC: The supposed beginning of the mythical reign of the legendary Yellow Emperor.; c. 2686–2613 BC: Third Dynasty of Egypt, consisting of the reigns of Djoser, Sekhemkhet, Sanakht (), Khaba and …

Mesopotamia. 4100–3100 BC: the Uruk period, with emerging Sumerian hegemony and development of "proto-cuneiform" writing; base-60 mathematics, astronomy and astrology, civil law, complex hydrology, the sailboat, potter's wheel and wheel; the Chalcolithic proceeds into the Early Bronze Age.; 3500–2340 BC; Sumer: wheeled carts, potter's wheel, White Temple …