Peking Man, dating from 750,000-500,000 BCE, was an early human ancestor found in China. Agriculture developed along China's Yellow River around 3000-2000 BCE, marking the beginning of China's Neolithic period. Early Chinese civilization emerged from four ancient river valley cultures, with myths developing around divine figures like Pan-Gu and the Yellow Emperor, who was associated with important early inventions. Formalized writing developed during the Shang Dynasty from 1523-1028 BCE, as evidenced by oracle bones used for divination. The Zhou Dynasty then ruled from 1027-771 BCE in the Western Zhou and 771-256 BCE in the Eastern Zhou, leaving behind ritual bronzes, jade carvings,