Renaissance weapons were made more effective by the airplane bombs gunpowder

(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

the main reason that the constitution did not proclaim all men to be free and equal is because of the issue of slavery.