Answer:
No, without proper government, administration cannot be form in a country because we have found some urban or community leaders in our ancient history and they used to run their group with their muscle power. There were no rules and regulations and anyone can replace their leader by showing more power.
A) A fort was established and many were killed by diseases
Lewis and Clark's expedition was not positive to the native of Mandan village the most devastating epidemic was the smallpox outbreak in the year 1837 killing a lot of people. The epidemic played an important factor in uniting the surviving Mandans and Hidatsa who later engaged in trade, farming and hunting.
Louisiana purchase of 1803 doubled the size of the united State give the country complete control of the port of new Orleans, and provided territory for westward expansion.
Emperess Wu was a woman setting her apart from all of the other emperors.
Hope this helps. ฅ^•ﻌ•^ฅ
Five Motives for Imperialism. Various motives prompt empires to seek to expand their rule over other countries or territories. These include economic, exploratory, ethnocentric, political, and religious motives. ... Imperial powers often competed with each over for the best potential resources, markets, and trade.