Unit 0 By jkahn@wssdgmail.org 8000 BCE Invention of Farming 3500 BCE Invention of Writing Period: 3500 BCE to 1500 BCE Bronze Age Period: 3500 BCE to 1000 BCE Ancient Egypt Period: 3000 BCE to 2200 BCE Sumerian city-states 2200 BCE Civilization in China Period: 2200 BCE to 1700 BCE Indus River Valley civilization Period: 1600 BCE to 1046 BCE Shang Dynasty Period: 1046 BCE to 771 BCE Zhou Dynasty Period: 900 BCE to 600 BCE Assyrian Empire