Fort Sumter, Charleston, South Carolina
Answer:
The French Revolution, however became the spark for the Haitian Revolution after the French revolutionaries declared that all men be free and equal and when word spread to Haiti, a French colony, the African slaves of the island agreed and decided to rise up.
The answer should be racial segregation laws which in doctrine saying
"separate but equal"
Your answer should be segregation. I hope this helps!
To reduce competition from foreign grain producers .
The Civil War was from 1861-1865 which is 4 years.