
This period ended when the capital was moved eastward. The first period of Zhou rule, during which the Zhou held undisputed power over China, is known as the Western Zhou period.

The Zhou ruled until 256 BCE, when the state of Qin captured Chengzhou. The Zhou needed to erase the various small states of prehistoric China from history, and replace them with the monocratic Xia Dynasty in order for their Mandate of Heaven to seem valid (i.e., to support the claim that there always would be, and always had been, only one ruler of China). The need for the Zhou to create a history of a unified China is also why some scholars think the Xia Dynasty may have been an invention of the Zhou. The gods’ blessing was given instead to the new ruler under the Zhou Dynasty, which would rule China for the next 800 years. In other words, the Zhou believed that the Shang kings had become immoral with their excessive drinking, luxuriant living, and cruelty, and so had lost their mandate.

The Zhou claimed that their rule was justified by the Mandate of Heaven. Instead, rulers were expected to be good and just in order to keep the Mandate. The Mandate of Heaven did not require a ruler to be of noble birth, and had no time limitations. The Chinese Character for “Tian”: The Chinese character for “Tian,” meaning “heaven,” in (from left to right) Bronze script, Seal script, Oracle script, and modern simplified. The Zhou established authority by forging alliances with regional nobles, and founded their new dynasty with its capital at Fenghao (near present-day Xi’an, in western China).

They largely had the support of the Chinese people: Di Xin (the final king of the Shang Dynasty) had become cruel, spent state money on drinking and gambling, and ignored the state. This was a battle between Shang and Zhou clans, over the Shang’s expansion. In 1046 BCE, the Zhou, a subject people living in the western part of the kingdom, overthrew the Shang Dynasty at the Battle of Muye. Good rulers were allowed to rule under the Mandate of Heaven, while despotic, unjust rulers had the Mandate revoked. Mandate of Heaven: The Chinese philosophical concept of the circumstances under which a ruler is allowed to rule.Battle of Muye: The battle that resulted with the Zhou, a subject people living in the western part of the kingdom, overthrew the Shang Dynasty.Some scholars think the earlier Xia Dynasty never existed-that it was invented by the Zhou to support their claim under the Mandate that there had always been only one ruler of China.They used this Mandate to justify their overthrow of the Shang, and their subsequent rule. The Zhou created the Mandate of Heaven: the idea that there could be only one legitimate ruler of China at a time, and that this ruler had the blessing of the gods.

In 1046 BCE, the Shang Dynasty was overthrown at the Battle of Muye, and the Zhou Dynasty was established.
