AP World History - Timeline By Elijah-S Period: 4000 BCE to 4000 BCE Pastoral people domesticate horses for transportation - Ancient Mesopotamia starts up Period: 3500 BCE to 3000 BCE Ancient Egypt is started when the lower and upper areas unite Period: 3000 BCE to 1800 BCE Lifespan of the Norte Chico Civilization Period: 2500 BCE to 2000 Ancient Mesopotamia Introduces the idea of social hierarchies Period: 2500 BCE to 2500 BCE The Nubian societies start Period: 2070 BCE to 1600 BCE Xia Dynasty Starts - Seen as the Earliest Dynasty Period: 1600 BCE to 1000 BCE The fall of the Xia Dynasty - Shang Dynasty rises to replace it Period: 1500 BCE to 500 BCE Vedic society lifespan - Introduced the caste system Period: 500 BCE to 500 BCE Early traditions like Daoism and Confucianism start in China Period: 500 BCE to 1 CE Persian Empire expands - Mauryan Empire starts - China begins construction on the great wall