Liangzhu culture, ca. 3300-ca. 2250 BCE Longshan culture, ca. 3000-ca. 1700 BCE Erlitou culture, ca. 2000-1600 BCE Songze culture, ca. 4000-2500 BCE Qijia culture, ca. 2250-ca.1900 BCE Sanxingdui culture, ca. 2000-ca. 1000 BCE