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Learn The US Civil War

Slavery, secession and four years of war that ended with the Thirteenth Amendment.

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The US Civil War was fought from 1861 to 1865 between the United States and eleven slaveholding Southern states that seceded to form the Confederacy. The conflict grew from decades of argument over whether slavery would expand into the western territories, and Abraham Lincoln's election in 1860 triggered secession. The war became the deadliest in American history and ended with Union victory, emancipation and the Thirteenth Amendment. Learnr builds short lessons that tie battles to politics, the home front and the experience of enslaved people who seized their own freedom.

How to learn The US Civil War, step by step

Start with the politics of the 1850s. Study the Compromise of 1850, the Fugitive Slave Act, the Kansas-Nebraska Act of 1854, the Dred Scott decision of 1857 and John Brown's raid of 1859. Each one sharpened the fight over slavery's expansion and pushed the country closer to breaking apart.
Read the secession declarations. South Carolina, Mississippi, Georgia and Texas issued statements explaining why they left the Union, and Alexander Stephens gave his Cornerstone Speech in March 1861. Reading them yourself shows how directly secessionists named the protection of slavery as their cause.
Learn the war in two main theaters. In the East, follow Bull Run, Antietam, Fredericksburg, Gettysburg and the 1864 campaigns in Virginia. In the West, follow Grant along the Mississippi to Vicksburg and Sherman to Atlanta. Many beginners know only the East, but the West was where the Union made steady gains.
Follow emancipation step by step. Trace how enslaved people fled to Union lines, how Congress passed confiscation acts, how Lincoln issued the Emancipation Proclamation on January 1, 1863, and how roughly 180,000 Black men served in the Union army, with thousands more in the navy. End with the Thirteenth Amendment, ratified in December 1865.
Hear soldiers and civilians directly. Read soldiers' letters, Frederick Douglass's speeches, Mary Chesnut's diary and Lincoln's Gettysburg Address and Second Inaugural. Pair them with James McPherson's Battle Cry of Freedom for the full narrative.
Review battles and dates in daily bursts. Dozens of battles, generals and years blur together fast. Learnr's short daily lessons and streak keep the order straight and link each battle to what it changed politically.

What you'll learn

Explain how disputes over slavery in the territories led to secession
Use secession documents to identify the Confederacy's stated reasons for leaving
Describe the strategy and turning points of the war in East and West
Trace how emancipation moved from war measure to constitutional amendment
Recognize and correct common Lost Cause myths about the war

What's inside your The US Civil War course

A sample path Learnr builds for The US Civil War. Your real course adapts to your goal and level.

1. Slavery, expansion and the crises of the 1850s
2. Lincoln's election and secession
3. The war in the East and the West
4. Emancipation and Black soldiers
5. Home fronts, economies and diplomacy
6. Union victory, Lincoln's assassination and the start of Reconstruction

How long does it take to learn The US Civil War?

A clear understanding of causes, major campaigns and emancipation takes about 5 to 8 weeks at 3 hours a week. Military detail, Reconstruction and the war's memory can each add a month or more, depending on how deeply you read.

What you need before you start

Basic familiarity with US geography and the early republic helps. No prior study of the war is needed, and the course explains the Constitution's role in the slavery debates.

Common mistakes to avoid

Accepting the claim that the war was mainly about tariffs or states' rights in the abstract. The secession documents show that the right at issue was the right to hold people in slavery.
Following only Confederate generals like Lee, which is a legacy of Lost Cause writing. Give equal attention to Union strategy, Grant and the western theater.
Treating emancipation as a single signature. It was a process driven by enslaved people's escapes, military need, Black soldiers' service, legislation and the Thirteenth Amendment.

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The US Civil War questions, answered

What was the main cause of the Civil War?

Slavery, and especially whether it would spread into the western territories. Southern states seceded after Lincoln, who opposed slavery's expansion, won the 1860 election, and their own declarations named slavery as the central issue.

How many people died in the Civil War?

The traditional estimate was about 620,000 soldiers. A 2011 study by historian J. David Hacker using census data put the figure nearer 750,000, within a wide margin of uncertainty. Civilian deaths are harder to count and are not included in either figure.

When did the Civil War end?

Lee surrendered to Grant at Appomattox Court House on April 9, 1865, and remaining Confederate forces surrendered over the following weeks. Lincoln was shot on April 14 and died the next day.