The Zhou Dynasty used the notion of the Mandate of Heaven to defend the overthrow of the Shang Dynasty. The "Mandate of Heaven" is an earliest Chinese philosophical concept, which was created during the Zhou Dynasty(1046-256 BCE). The Mandate of Heaven decides whether a ruler of China is satisfactorily righteous to lead; if he does not accomplish his responsibilities as an emperor, then he fails the Mandate and thus the right to be emperor. Zhou leaders appealed that the Shang emperors had become fraudulent and unfit, so Heaven commanded their removal.
China had invaded Vietnam
The first inventions that harness natural energy resource is Water mill. Back then, people use the power of water to move the lever in order to create mechanical movement.
The invention that help transfer water from river to town is aqueduct. Or more commonly knwon as water bridgte, useful to navigate the movement of water.
Lever is the invention that makes lifting weight easier, mostly used in contruction sites.
