South Carolina was placed under military control because Abraham Lincoln believed that reconstruction of the South, after the Civil War was done, needed to be merciful to heal the country. The Reconstruction Act of 1867 placed Southern countries under military rule.
Answer:
Institutionalization of Jim Crowe laws and increased availability of manufacturing jobs.
Explanation:
After the return to power of white democratic leaders in the South during late XIX century, local government encated laws to limit the political participation of African-Americans and also to segregate them. At the same time, Northern and Western states opened a number of job positions, specially in the steelmaker industry, where this population saw a new opportunity to leave behind discrimination in the South.
The slavery in the North never reached the same number and
intensity of the slavery in the South. The controls and tactics of the
slaves were less severe than that of the South, though there were slaves who
played key roles in the eve of the revolution at different parts of America. Though
in the North, the slave population decreased faster than that of the South.