What was the main purpose of Egyptian pyramids

keep faraon alive (faraon = both immanent and transcendent ruler of Egypt). Keeping his body intact = keeping him alive.

Explanation: in its essence, Egypt was empire par excellence. Egypt itself was exteriorization of faraon and only faraon could determine exactly where Egyptian frontiers lie which is unbelievably imperialist idea. Taking care of faraon´s body Egyptians were taking care of Egypt.

(202 bc - 220 ad) dynasty started by lui bang; a great and long-lasting rule, it discarded the harsh policies of the qin dynasty and adopted confucian principles; han rulers chose officials who passed the civil service exams rather than birth; it was a time of prosperity

c) troops march forward in close formation against newer, more accurate weapons