AQA GCSE History (8145) — Period Studies
A simple geographical line kept the peace between North and South for over 30 years, yet it was completely destroyed by a political deal to build a railway. The 1820 Missouri Compromise had established a boundary at 36°30′ north latitude to maintain a sectional balance of free and slave states in the US Senate. Slavery was prohibited north of this line and permitted south of it.
In 1854, Senator Stephen A. Douglas proposed the Kansas-Nebraska Act to organise new territories for a northern transcontinental railroad. To gain the vital support of Southern senators, this act fundamentally changed how territories handled slavery:
The political fallout was massive. The collapse of the compromise destroyed the Whig Party and led to the formation of the Republican Party in 1854, which was dedicated to stopping the expansion of slavery. The breakdown was finalised by the 1857 Dred Scott v. Sandford Supreme Court ruling, which declared the original 1820 Compromise unconstitutional.
How does a local settler become a feared radical icon whose actions push an entire nation towards civil war? John Brown was radicalised during the violence of Bleeding Kansas. Following the Sack of Lawrence in 1856, Brown and his sons committed the Pottawatomie Creek Massacre, killing five pro-slavery men with broadswords to "strike terror" into his enemies.
This brutal reputation earned him the financial backing of the Secret Six, a group of wealthy Northern abolitionists. This funding allowed Brown to execute a much larger attack on Harpers Ferry between October 16 and 18, 1859. His key objectives and actions included:
The raid failed militarily, but its political significance was monumental. Many in the North viewed Brown as a martyr who died for the abolitionist cause. Conversely, the South was terrified, viewing the raid as proof that Northerners supported violent terrorism. In response to the fear of slave revolts, Southern states began heavily reinforcing their state militias, laying the groundwork for the future Confederate Army.
Imagine winning the highest political office in a country without even appearing on the ballot in ten of its states. This was the reality of the November 1860 presidential election. Abraham Lincoln won a clear Electoral College majority with just 39.7% of the popular vote, securing a purely sectional victory across all 18 free states.
Lincoln campaigned on the Republican platform of stopping the western expansion of slavery, though he promised not to interfere with it where it already existed. Despite this moderate stance, his victory was the tipping point for the nation:
Lincoln's legal stance on The Union defined the transition to war. In his First Inaugural Address (March 1861), he declared the Union "perpetual" and secession "legally void". His initial military objective was strictly to preserve the Union against an illegal rebellion, not to abolish slavery.
While one president was preparing to take the oath of office in Washington, another had already been sworn in to lead a breakaway republic in the Deep South. On February 9, 1861, Jefferson Davis, a former US Secretary of War, was elected provisional President of the Confederate States of America (CSA) in Montgomery, Alabama.
Davis was initially a moderate who only resigned from the US Senate after his home state of Mississippi seceded. He justified secession through the doctrine of States' Rights:
The transition from a political crisis to armed conflict was ultimately triggered by Davis's military decisions. In April 1861, Davis ordered Confederate forces to bombard Fort Sumter in South Carolina before Lincoln's resupply ships could arrive. By firing the first shots, Davis allowed Lincoln to label the South as the aggressors.
When assessing their roles, historians often contrast their leadership. Lincoln argued the Union was a binding legal contract and proved to be a masterful political strategist. Davis, conversely, insisted on the legality of withdrawal but struggled to unify the Confederacy, often micromanaging his generals and fighting with state governors who refused to follow central orders.
Students often state that Abraham Lincoln campaigned in 1860 on a promise to abolish slavery entirely, but his actual platform was only to stop its expansion into new Western territories.
In "Explain the significance" questions on John Brown, examiners expect you to look beyond the failure of the raid itself and focus on the consequences, such as the militarisation of the South and the national polarisation.
Use the precise term "catalyst" when describing the 1860 presidential election; it triggered the immediate move to secession but did not cause the underlying long-term tensions over slavery.
For 16-mark evaluation essays assessing leadership, clearly contrast Lincoln's legal stance on a "perpetual" Union against Davis's justification of "states' rights" to evaluate who forced the transition to armed conflict at Fort Sumter.
Sectional balance
The political agreement to maintain an equal number of free and slave states to ensure equal representation in the US Senate.
Popular Sovereignty
The political doctrine that the people living in a territory should vote to determine for themselves whether to allow slavery.
Republican Party
A political party formed in 1854 focused on stopping the westward spread of slavery, viewed by Southerners as a radical threat.
Sack of Lawrence
An attack by pro-slavery activists on an anti-slavery town in Kansas in 1856, which served as the immediate trigger for John Brown's violent retaliation.
Broadswords
The weapon specifically chosen by John Brown for the Pottawatomie killings to strike terror into his enemies and avoid the noise of gunfire.
Secret Six
A group of wealthy Northern abolitionists who secretly provided financial support for John Brown’s militant activities.
Federal Arsenal
A facility where weapons and ammunition are manufactured and stored by the national government.
Insurrection
A violent uprising or rebellion against an established government or authority, such as an armed slave revolt.
Martyr
Someone who suffers or dies for their religious or political beliefs, often inspiring others to support their cause in the process.
Abolitionist
A person who favoured the immediate and total end of the institution of slavery.
Secession
The formal withdrawal of a state from the Federal Union.
The Union
The United States of America, specifically the Northern states that remained loyal to the federal government during the Civil War.
Confederate States of America (CSA)
The unrecognised republic formed by 11 Southern states that seceded from the US between 1860 and 1861.
States' Rights
The political philosophy that individual states possess certain powers independent of the federal government, used by Jefferson Davis to justify the legality of leaving the Union.
Put your knowledge into practice — try past paper questions for History
Sectional balance
The political agreement to maintain an equal number of free and slave states to ensure equal representation in the US Senate.
Popular Sovereignty
The political doctrine that the people living in a territory should vote to determine for themselves whether to allow slavery.
Republican Party
A political party formed in 1854 focused on stopping the westward spread of slavery, viewed by Southerners as a radical threat.
Sack of Lawrence
An attack by pro-slavery activists on an anti-slavery town in Kansas in 1856, which served as the immediate trigger for John Brown's violent retaliation.
Broadswords
The weapon specifically chosen by John Brown for the Pottawatomie killings to strike terror into his enemies and avoid the noise of gunfire.
Secret Six
A group of wealthy Northern abolitionists who secretly provided financial support for John Brown’s militant activities.
Federal Arsenal
A facility where weapons and ammunition are manufactured and stored by the national government.
Insurrection
A violent uprising or rebellion against an established government or authority, such as an armed slave revolt.
Martyr
Someone who suffers or dies for their religious or political beliefs, often inspiring others to support their cause in the process.
Abolitionist
A person who favoured the immediate and total end of the institution of slavery.
Secession
The formal withdrawal of a state from the Federal Union.
The Union
The United States of America, specifically the Northern states that remained loyal to the federal government during the Civil War.
Confederate States of America (CSA)
The unrecognised republic formed by 11 Southern states that seceded from the US between 1860 and 1861.
States' Rights
The political philosophy that individual states possess certain powers independent of the federal government, used by Jefferson Davis to justify the legality of leaving the Union.
