The Zhou Dynasty ruled China from 1050 BC to 221 BC. It began with the Western Zhou based along the Wei River from 1050-771 BC. From 771-441 BC it was the Eastern Zhou after the Zhou people were forced east to Luoyang. From 441-221 BC it was the Warring States period as the dynasty fragmented into smaller warring states. The three main religions during this period were Confucianism, Taoism, and Legalism. Jade and bronze were valuable materials used for artifacts, weapons, and burial goods throughout the Shang and Zhou dynasties. From 481-221 BC the number of warring states reduced from 200 to just 7, leading to the