The document summarizes the key events and divisions between the North and South that led to the American Civil War. It traces the origins of the conflict back to compromises over slavery made during the drafting of the Constitution and the development of opposing economic and political interests between the regions. Key events that exacerbated tensions included the Kansas-Nebraska Act, Dred Scott decision, Lincoln-Douglas debates, and John Brown's raid on Harper's Ferry. This ultimately resulted in Southern secession after Lincoln's election in 1860 and the outbreak of war following the Confederate attack on Fort Sumter in 1861.
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Causes of the American Civil War.pdf
1. Towards Disunion:
Causes of the American Civil War
“A house divided against itself cannot stand. I believe this government cannot
endure permanently half slave and half free.” – Abraham Lincoln, 1858
2. Early Divisions Between North and South
Event North South
Drafting of the
US Constitution
• Agreed to allow the Transatlantic
slave trade until 1808
• 3/5 Compromise
• Fugitive Slave Act
Development of
Political Parties
• Hamiltonian
• Federalists/Whigs
• Loose Construction
• Jeffersonian
• Democratic-Republican/Democratic
• Strict Construction
• Virginia and Kentucky Resolutions
Economic
Development
• Manufacturing
• Textile mills and factories
• Immigrants
• Agriculture
• Cotton gin
• Slaves
Abolition and
Slavery
• Supported abolition movement
• Home of the Liberator and North Star
• Opposed abolition
• Defended slavery
Tariff of
Abominations
• Benefitted North
• led to conflict between Andrew
Jackson and John C. Calhoun
• Force Act
• threatened secession
• lost the South Carolina Nullification
Crisis
Wilmot Proviso • Supported House proposal to ban
slavery in territory taken from
Mexico
• Blocked passage in the Senate
6. The Compromise of 1850
Issue South North Compromise
California CA slave CA free CA free
TX/NM
Border
Wanted TX to
get the land for
slavery
Wanted NM to
get the land b/c
slavery status
undetermined
NM gets land
TX gets $10 million
Slavery in DC Keep slavery End slavery Keep slavery,
Bans slave trade
Fugitive Slave
Law
Want strict
fugitive slave
law
No fugitive slave
law
Strict fugitive slave law
Slavery in
NM & UT
Slavery in both Ban in both Popular sovereignty
Major Figures Calhoun, Taylor Webster,
Fillmore
Clay, Douglass
21. Dred Scott v.
Sanford, 1857
• Chief Justice Roger B. Taney
• Blacks (slave or free) aren’t US
citizens, not protected by US
Const, can’t sue
• Congress can’t prohibit slavery
in fed. territory (undoes MO
Comp and KS-NB).
• Slaves, as private property, can’t
be taken away from their
owners without due process.
• Strengthened opposition to
slavery, split Dems on sectional
lines.
26. Republican Party Platform in 1860
• Free-soilers: Non-extension of slavery
• N: Protective tariff
• NW: Government aid to build Pacific RR
• W: Internal improvements at federal expense
• Farmers: free homesteads
33. Lincoln’s reaction to secession
“I have no purpose, directly or indirectly, to interfere
with the institution of slavery in the States where it
exists. I believe I have no lawful right to do so, and I have no
inclination to do so.”
“In your hands, my dissatisfied fellow-countrymen, and not in
mine, is the momentous issue of civil war. The Government
will not assail you. You can have no conflict without being
yourselves the aggressors. You have no oath registered in
heaven to destroy the Government, while I shall have the
most solemn one to “preserve, protect, and defend it.”
- Lincoln’s First Inaugural Address, March 4, 1861
35. “My paramount object in this struggle is to save the
Union, and is not either to save or to destroy slavery. If
I could save the Union without freeing any slave I
would do it, and if I could save it by freeing all the
slaves I would do it; and if I could save it by freeing
some and leaving others alone I would also do that.
What I do about slavery, and the colored race, I do
because I believe it helps to save the Union; and what I
forbear, I forbear because I do not believe it would help
to save the Union.”
- Lincoln, August 22, 1862
36. The Basic Causes of Southern Secession
1. Slavery
2. State’s Rights vs. Federal Gov.
3. Economic Differences
4. Cultural Differences
Lincoln’s Reason for Fighting the War:
1861-1862: PRESERVE UNION
1863-1865: PRESERVE UNION + END SLAVERY