When the flooding waters of the n\nile recended, what did they leave behind? a. mounds of grain b. rich, black soil c. large stones d. small islands

(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

2018 means 2018 ce or common era

there have been other eras too including bce, which included way more years.