Answer:
Originating out of a violent civil war, the shogunate was successful because they used force to rule Japan.
The Shogunate was the form of government that ruled Japan for nearly 700 years. The shogun had de facto power, although Japan has always had an emperor. Together with the Imperial court, the Shogunate formed a parallel power structure, with the Shogun as the military leader alongside the imperial state structure. Over time, the Imperial court would have to relinquish more and more power and the Shogunate would become Japan's most powerful organization.
The answer should be racial segregation laws which in doctrine saying
"separate but equal"
Your answer should be segregation. I hope this helps!
The answers that apply to the question would be: John Brown's raid AND the election of 1860. The other events had already happened by the time the civil wat started.