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Answer: Open Door Policy
<span>The Open Door Policy was initiated by John Hay in 1899 which also allowed the US to benefit from trade with China.
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Natural Resources and Transportation.
The more of these you have the better country you are!
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I think the main cause was slavery in the economy and society and there were pro slavery and free states so that didn’t work out
Answer:
In the early 1800s, several semi-skilled trade unions formed – once again, Philadelphia unions played a major role - and factory strikes and walkouts became more common
Explanation:
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