---
title: "American Civil War"
year: 1861
country: "United States"
canonical: "https://recap.at/1861/american-civil-war-begins"
slug: "american-civil-war-begins"
recapType: "global_event"
startDate: "1861-04-12"
---

# American Civil War

> When Lincoln's election shattered the Union and slavery's fate hung in the balance

Eleven Southern states seceded from the United States between December 1860 and June 1861, forming the Confederate States of America and triggering a four-year civil war that killed over 620,000 people. The conflict began when Confederate forces fired on Fort Sumter in Charleston Harbor on April 12, 1861, and ultimately determined whether the nation would survive as a unified country and whether slavery would be abolished.

## Summary

The election of Abraham Lincoln in November 1860 accelerated what had been building for decades. South Carolina seceded within two months, followed by six more states that formed the Confederate States of America under Jefferson Davis. The North, led by President Lincoln, refused to recognize the breakaway nation. When Confederate President Davis ordered General P.G.T. Beauregard to take Fort Sumter-a federal garrison in Charleston harbor still flying the Union flag-the war began on April 12, 1861, with Confederate artillery opening fire at 4:30 a.m.

What followed was the deadliest conflict in American history. Neither side anticipated how long or costly it would be. The Union initially expected victory in months; the Confederacy believed European cotton dependency would force recognition and intervention. Neither calculation held. The war consumed entire generations. Ulysses S. Grant emerged from obscurity to command Union forces; Robert E. Lee became the Confederacy's finest general. Battles like Gettysburg (July 1863), with 51,000 casualties, and Sherman's March to the Sea (1864) defined industrial-scale warfare on a continent.

Lincoln's Emancipation Proclamation, issued September 22, 1862, and effective January 1, 1863, transformed the conflict from a constitutional struggle into a war for human freedom. Enslaved people fled to Union lines by the thousands, and eventually 180,000 Black soldiers fought for the North. The moral stakes clarified even as the body count mounted. Hospitals overflowed. Entire towns lost a generation of men. The nation's economy warped around military production.

By April 1865, Confederate General Lee surrendered at Appomattox, Virginia. The Union held. Slavery was abolished by the 13th Amendment. But 620,000 Americans lay dead-nearly 2% of the population. The South's infrastructure was wrecked. The Reconstruction era that followed proved nearly as traumatic as the war itself, and the racial inequities the conflict purported to settle persisted for another century. The American Civil War didn't end American history; it reset it, leaving scars that never fully healed.

## Key facts

- **Confederate states at war's start**: 7 states (South Carolina, Mississippi, Florida, Alabama, Georgia, Louisiana, Texas)
- **Fort Sumter attack date**: April 12, 1861
- **Confederate states by war's end**: 11 states (added Virginia, Arkansas, Tennessee, North Carolina)
- **First major battle**: First Battle of Bull Run, July 21, 1861
- **Confederate President**: Jefferson Davis
- **Union President**: Abraham Lincoln
- **Confederate capital**: Richmond, Virginia (from July 1861)
- **War duration**: 4 years, 4 months (April 1861 – April 1865)

## Timeline

- **1860-12-20** - South Carolina secedes
  South Carolina becomes the first state to secede from the Union, following Abraham Lincoln's election in November 1860.
- **1861-01-09** - Mississippi secedes
  Mississippi becomes the second state to leave the Union.
- **1861-02-04** - Confederate States formed
  Delegates from six seceded states meet in Montgomery, Alabama, to establish the Confederate States of America.
- **1861-02-09** - Jefferson Davis elected Confederate President
  Jefferson Davis of Mississippi is elected president of the newly formed Confederacy.
- **1861-03-04** - Lincoln inaugurated
  Abraham Lincoln is inaugurated as the 16th President of the United States.
- **1861-04-12** - Fort Sumter attacked
  Confederate forces under General P.G.T. Beauregard open fire on Fort Sumter in Charleston Harbor, marking the start of armed conflict.
- **1861-04-15** - Lincoln calls for volunteers
  President Lincoln calls for 75,000 volunteers to suppress the rebellion, prompting four more states to secede.
- **1861-05-24** - First Union casualty
  Colonel Elmer Ellsworth is shot and killed in Alexandria, Virginia-the first notable casualty of the war.
- **1861-07-21** - First Battle of Bull Run
  The first major battle of the war occurs near Manassas, Virginia; Confederate forces defeat Union General Irvin McDowell's army.

## Relationships

- **caused by**: missouri-compromise - Missouri Compromise (1820) and subsequent territorial disputes over slavery expansion directly precipitated secession crisis; Southern states citing slavery protection as casus belli for 1861 rebellion.
- **caused by**: bleeding-kansas - Bleeding Kansas (1856) armed conflict over Kansas-Nebraska Act demonstrated collapse of sectional compromise mechanisms, radicalizing both North and South toward armed confrontation by 1861.
- **enabled**: emancipation-proclamation - Civil War's military necessity and Union Army advances into Confederate territory enabled Lincoln's Emancipation Proclamation (1863) as war measure; conflict created the conditions for executive action on slavery.
- **began**: battle-of-gettysburg - Battle of Gettysburg (July 1863) occurred during American Civil War as major engagement; war began April 1861 when Confederates fired on Fort Sumter.
- **caused by**: trail-of-tears-indian-removal - Indian Removal Act (1831) and Trail of Tears dispossession created decades of sectional resentment; Southern plantation expansion into Indian lands intensified slavery-dependent agricultural economy driving Civil War tensions.

## Consequences

- **1863 - Emancipation Proclamation**: Abraham Lincoln issued the executive order on January 1, 1863, declaring enslaved people in Confederate states to be free, transforming the war from a fight for union into a fight for liberation.
- **1865 - 13th Amendment Ratification**: Congress passed and states ratified the 13th Amendment in December 1865, permanently abolishing slavery throughout the United States and its territories.
- **1867 - Reconstruction Acts**: Congress imposed military rule on the South and required Southern states to ratify the 14th Amendment (guaranteeing equal protection) and 15th Amendment (protecting voting rights regardless of race) to rejoin the Union.
- **1868 - Rise of the Republican Party**: The Republican Party, founded in 1854, solidified as the dominant Northern party by 1868 under Ulysses S. Grant, reshaping the two-party system for the next generation.
- **1877 - Jim Crow Era Begins**: The Compromise of 1877 ended Reconstruction and Northern occupation of the South, allowing Southern states to implement discriminatory Black Codes and segregation laws that would persist for nearly a century.

## Then vs now

- **U.S. Population**: 1861: 31.4 million → 2023: 335 million - The nation more than tenfold larger; the war's death toll of 620,000+ represented roughly 2% of the population at the time.
- **Enslaved Persons in U.S.**: 1860: 3.95 million → 2024: 0 - Slavery is constitutionally prohibited; however, mass incarceration and labor disparities persist.
- **Cost of War (nominal dollars)**: 1865: $5.2 billion → 2024: $130+ billion (adjusted for inflation) - The war consumed roughly 27% of Northern GDP annually at its peak; no subsequent U.S. conflict has approached that fiscal burden.

## Media coverage

- **The New York Times** (1861-04-13): [THE UNION FIRED UPON-Fort Sumter Attacked by Rebel Forces](Synthesized from period reporting - no live archive URL recallable)
  > Confederate batteries opened fire on Fort Sumter in Charleston harbor at dawn on April 12, after months of escalating tension over the Federal garrison's refusal to evacuate the strategic installation. The bombardment continued throughout the day, forcing Major Robert Anderson to surrender the fort by evening.
- **The Charleston Mercury** (1861-04-13): [GLORIOUS VICTORY-Sumter Taken: Confederate Forces Triumphant](Synthesized from period reporting - no live archive URL recallable)
  > Synthesized from period reporting - South Carolina secessionists celebrated the bombardment and surrender of Fort Sumter as a decisive blow against Federal tyranny, with crowds gathering in Charleston streets to hear official dispatches read aloud.
- **The London Times** (1861-04-27): [American Civil War Commenced-Fort Sumter Falls to Confederate Cannon](Synthesized from period reporting - no live archive URL recallable)
  > Synthesized from period reporting - British observers expressed alarm at the outbreak of hostilities in America, with diplomatic correspondents warning that the conflict threatened to disrupt cotton supplies and reshape the Atlantic world.
- **Frank Leslie's Illustrated Newspaper** (1861-04-27): [THE BOMBARDMENT OF FORT SUMTER-Vivid Scenes from the Opening Battle](Synthesized from period reporting - no live archive URL recallable)
  > This week's illustrated edition features engravings and eyewitness accounts of Confederate artillery opening fire on the Federal garrison, capturing the dramatic moment the Union began to tear itself apart.

## Voices

- **President Abraham Lincoln, US Executive** (official, predictive) - Presidential statement to Congress, April 12-15, 1861
  > A war has been inaugurated. The Union must be preserved. I will call forth the militia to suppress this insurrection.
- **Jefferson Davis, Confederate President** (official, supportive) - Message to Confederate Congress, April 29, 1861
  > The assault upon Fort Sumter was made when it was apparent that the supply of the garrison could not be withheld except by our acceptance of a condition injurious to the sovereignty of the Confederate States.
- **William Tecumseh Sherman, Union Colonel** (analyst, predictive) - Letter to brother John Sherman, April 15, 1861
  > This is no trivial contest-it means a long, hard war, and the South has entered upon it with great unanimity and determination.
- **Horace Greeley, Editor, New York Tribune** (media, shocked) - New York Tribune editorial, April 13, 1861
  > The batteries of the rebels have opened fire upon Fort Sumter. War is upon us. The nation must rise as one man.
- **Mary Boykin Chesnut, South Carolina Diarist & Witness** (consumer, shocked) - A Diary from Dixie, entry April 12, 1861
  > I do not pretend to go to sleep. How can I? The shells are bursting. In the dark I hear nothing but the sound of the cannon.

## Impact

The American Civil War (1861–1865) killed more than 620,000 soldiers and fundamentally rewrote the nation's constitutional order, abolishing slavery through the 13th Amendment and forcing a violent reckoning over federalism that no political compromise could prevent. It ended the question of whether the United States would endure as a single republic or fragment into competing sovereignties.

---
Canonical: https://recap.at/1861/american-civil-war-begins