Thinking About Chronology By Aacarswell Period: 4000 BCE to 1 CE First Civilizations 3500 BCE Egyptian Civilization Period: 3200 BCE to 2350 BCE Mesopotamian Civilization Period: 3000 BCE to 1800 BCE Norte Chico Civilization 2200 BCE Early Chinese Civilization Period: 2000 BCE to 1700 BCE Indus Valley Civilization 1200 BCE Olmec Civilization 900 BCE First Written Language in the Americas