Answer:
- Slavery
- Bleeding Kansas
- Abraham Lincoln
Step-by-step explanation:
Slavery:
While many in the South relied on slaves for labor, many in the North believed that slavery was wrong and evil, and wanted it to be illegal in the United States. This led to a lot of conflict between the Northern and Southern states.
Bleeding Kansas:
In 1854, the government passed the Kansas-Nebraska Act allowing the residents of Kansas to vote on whether they would be a slave state or a free state. Supporters from both sides faught over the issue for years, and many were killed in small fights on both sides, which gave the confrontation the name "Bleeding Kansas."
Abraham Lincoln:
Abraham Lincoln becoming president of the United States was the last straw for the Southern states. Because Lincoln was part of the anti-slavery Republican party, the South believed he was against them.