Welcome! Today we will learn why the Civil War began and how new amendments rebuilt our country.
In the 1800s, the North and South had big differences. The Southern economy depended on forced labor of enslaved African Americans. The Northern economy relied more on factories and free labor.

These differences created sectionalism, dividing the nation into regions. Southern states argued for states' rights to keep slavery. This deep disagreement led to the American Civil War in 1861.
After the North won in 1865, Reconstruction began. This period was a time to rebuild the South and reunite the states.
Congress passed three crucial amendments. The 13th ended slavery. The 14th gave citizenship to all born in the U.S. The 15th gave voting rights to African American men.
How did the expansion of slavery lead to sectionalism and cause the Civil War?
- Step 1: Look at the economic difference. Southern states wanted slavery to expand into new western lands to build farms.
- Step 2: Look at the opposition. Many Northern states wanted to stop slavery from expanding.
- Step 3: Connect this to sectionalism. This disagreement divided the nation into distinct Northern and Southern political groups.
- Step 4: Analyze states' rights arguments. Southern leaders argued that individual states had the right to allow slavery.
- Step 5: Conclude the cause. When compromises failed, this division caused Southern states to break away, starting the Civil War.
