Ancient China is made up of a number of independent states that were in the north of today’s China. Two particularly powerful states that had some control over the other states are the Shang and the Zhou. In around 500 BC, the Zhou began to lost control and the states fell into a period of war and chaos as each of the state are fighting over each other’s power. Nomadic tribes to the north of China during this period invaded the states wherein these tribes had become aware of the disharmony among the Chinese states
