<span>Jean-Jacques
Rousseau was known to be an Enlightenment thinker and for writing the social
contract theory. The theory took up the conditions for legitimate government,
in line with his belief of popular sovereignty form of government. He also
included in his theory that the government should be ruled by people because during
his time, it was very difficult to have this kind of government on an
individual basis. The government which
is ruled by the people is the government that the United Stated now practiced,
and other parts of the world. This type
of government is governed by the means of voting system, which is also about
democracy.</span>
President Jefferson commissioned the expedition shortly after the Louisiana Purchase in 1803 to explore and to map the newly acquired territory, to find a practical route across the western half of the continent, and to establish American presence in this territory before Britain and other European powers
Answer:
O Life-Saving medicines
Explanation:
he made some amazing things for those with disabilities
