The aftermath of Lewis and Clark's expedition was not all positive to the Mandan natives. The most devastating epidemic was the smallpox outbreak in the year 1837 which killed a lot of people, the epidemic was important in uniting the surviving people in Mandan and Hidatsa who later engaged in trading, farming and hunting
Explanation:
September 17, 1787 All 12 state delegations approve the Constitution, 39 delegates sign it of the 42 present, and the Convention formally adjourns
Children Had to Work
many people lost their Jobs because of new machines
Therefore they Had to move to the big cities to find work in the new factories where they Had to do monotonous and Boring Work(e.g. Control the machines)
This Work was badly paid
The cities were dirty and the Apartments often very small
But
New machines that Made Life easier ( staem engines)
The answer is D, all the answers are correct
