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The Mongol Empire under Genghis Khan started the conquest with small-scale raids into Western Xia in 1205 and 1207. By 1279, the Mongol leader Kublai Khan had established the Yuan dynasty in China and crushed the last Song resistance, which marked the onset of all of China under the Mongol Yuan rule.
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Because they got under our radar and we had no part in the other than sending supplys
I am going off of memory here so forgive me if i am wrong but the best answer given is He did away with high tariffs on imported goods. Hope i helped :)
Answer:
The nullification crisis was a conflict between the U.S. state of South Carolina and the federal government of the United States in 1832–33. ... In November 1832 South Carolina adopted the Ordinance of Nullification, declaring the tariffs null, void, and nonbinding in the state.
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