Because they lead to the liberal republican group.
The United States Constitution can be changed informally. Informal amendments mean that the Constitution does not specifically list these processes as forms of amending the Constitution, but because of change in society or judicial review changed the rule of law de facto.
2nd one because those were the areas with the best water to grow the planbts.
<em />It was a watershed event because it showed that the local culture and local people were done with being treated in a bad manner and that they will not allow for their culture to end. Their culture started getting incorporated in mainstream culture afterwards and this can be seen up to this day.<em>
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Andrew Johnson's behavior in office hurt the cause of the Reconstruction era, since he abandoned many of the more-liberal policies that he had trumpeted earlier, leading to a federal abandonment of the oversight process in the South.
hope this helps :)