In earliest times was a personal god, probably the highest deity among many, but in the Zhou dynasty it became an impersonal force guided by its own principle of what is right.

the anwser is missions

powerful warriors rose to become chiefs, who had a privileged place in society.

rome's central location made it a center for trade through out the mediterain.

rome's lack of natural resouces encourgaged expansion and rome's geography priotected the city from invasion.