Although there were many factors, the greatest was "<span>an increase in the number of factories and jobs". Industrialization had begun in the United States, opening up many more factory positions. </span>
That would be Mr.Ulysses S Grant and the year was 1869 may 10th to be exact
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I think it would be the eighteenth century
Colonizers ignored the ethnic groups when drawing the political borders. Most countries have diverse ethnic groups
In my research I have found that the answer is D, here's why.
Sectionalism is to pay more attention to the politics in the area local to where you reside rather than paying attention to politics on a federal level (unless of course you live in the country capital.) Federalism is the exact opposite.