America refused to recognize the right of Germany to declare unrestricted submarine warfare and continued to ship war materials. ... When the Germans sunk the Lusitania American civilians were killed in the "unprovoked" attack. The outrage over this atrocity provided the reason for America to enter the war.
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The trade of cotton, hope this helps
This is false. The United States was doing relatively well before the Industrial Revolution, and when it his Britain it didn't take long for the technology to reach the United States.
