Answer:
The Ice-Free Corridor hypothesis (or IFC) has been a reasonable theory for how human colonization of the American continents occurred since at least the 1930s. ... In 1840, Louis Agassiz put forward his theory that the continents had been covered by glacial ice at several points in our ancient history
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Answer:
Andrew Jackson was the seventh president of the us. He served 2 terms in workplace from 1829 to 1837. throughout Jackson's presidency, the us evolved from a republic—in that solely landowners might vote—to mass democracy, during which white men of all socioeconomic categories were enfranchised.
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President Lincoln's leadership was key to North's victory against the South during the Civil War.
