Different ideas, cultures, religions, lots of factors.
The Civil War was based on a disagreement on slavery, but slavery was not the main issue. The Union opposed the South's economic system (slavery) and the South was not too happy about that so they began seceding from the Union. President Lincoln's main goal was to preserve the Union and to get the Southern states to come back. Slavery was just something that had gotten taken care of during the Civil War.
Because men 18-35 had to serve for 3yrs, later 17-50, and if he couldn't afford it, he would have to hire a substitute to serve for him.
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<h2>The Dawes ActA law passed in 1887 for the stated purpose of encouraging assimilation among Native Americans. The Dawes Act authorized the government to divide a large number of existing reservations into individual family plots, with the remaining lands being transferred to the federal government.</h2>
Explanation:
<h2>Hopes this helps. Mark as brainlest plz!</h2>