In the mid-1800s Native Americans who had lived in the West
O traded their manufactured goods with settlers,
O were able to retet diskares carried by settlers
othered their services as guides to settlers
prevented settlers from moving onto their territory,

(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

a standing committee

explanation:

the name of the theory is landmass theory.