What caused the Warring States period?

A. The Shang emperor lost the Mandate of Heaven.

B. Daoism started to take hold.

C. Nobles stopped supporting the emperor.

D. The ruler of the Xia dynasty died.

nothing certain is known about what happened, but it seems that the country declined gradually, perhaps due to bad government, or, more likely, due to a series of bad harvests, which resulted in widespread and recurrent famine.

1. darius the great     persia  

2. piankhi       nubia

3. ezana       aksum

4.     nebuchadnezzar     babylonia

5. shalmaneser iii     assyria

true car insurance is optinial

to tell the truth it is a mix of the a and d because after the romans argued among themselves outside forces took control however it is mostly d.