Is based on the belief that heaven and earth are not separated places but rather a continuum in which both realms are constantly in touch with each other.

Confucianism

Explanation:

Confucianism is based on the belief that Heaven and Earth are not separated places but rather a continuum in which both realms are constantly in touch with each other. It was propagated by Confucius in the 6th–5th-century bc. It has been followed by the Chinese people. Confucius stated the importance of family and social harmony. Confucianism was both a philosophy and a religion. People who inhabit Heaven are the ancestors of the ones that are on Earth. Death is a promotion to a more honorable state.

first, the romans stayed isolated because they had to defend their own territories from neighboring cities that were harassing them, like the etruscans. second, once the romans managed to defeat their neighbors, and started to expand their territory, they started to build roads and bridges. finally, now that the romans have covered their territory with roads functioning as highways, they could mobilize their legions faster to assemble larger military units in a specific place.