They empowered the federal government to prevent voting rights discrimination at the state level; it also resulted in an increased number of minority voters and black participation in the political process.
Answer: Its the third option The United States Colored Troops Regiments
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They had to reinvent their economy because General Shermans tactic of total war. when he did total war, he marched from the north all the way to Atlanta, Georgia and destroyed anything that couldn't be used as food or supplies. so they had to reinvent their economy because the south was totally destroyed
The main reason why external criticism is so important when it comes to analyzing data is because as the handler of the data yourself, you can quickly develop a bias and "expect" a certain outcome, which might affect your analysis.
