First Civilizations By Harshana Sundaravelu Period: 3500 BCE to 3000 BCE Nile River Valley's Egyptian Civilization Emerges Period: 3500 BCE to 3000 BCE Mesopotamia's Sumerian City-States Emerge Period: 3400 BCE to 3200 BCE Nile River's Nubian Civilization Emerges Period: 3000 BCE to 1800 BCE Peru's Norte Chico Urban Centers Emerge 2200 BCE Chinese Civilization Emerges 2200 BCE Central Asia's Oxus Civilization Emerges 2000 BCE Pakistan's Indus Valley Civilization Emerges 1700 BCE Oxus Civilization Fades 1700 BCE Indus Valley Civilization is Abandoned 1200 BCE Mexico's Olmec Civilization Emerges