Define
Market Revolution
Transformation of the U.S. economy in the early 1800s from small-scale local production to a national market connected by transportation and communication networks.
Created regional specialization (North–industry, South–cotton, West–grain) and intensified political conflict over slavery expansion.
Explain
Transportation Revolution
Massive expansion of turnpikes, steamboats, canals, and railroads that reorganized how goods and people moved across the U.S.
Lowered shipping costs by up to 90%, unified regional markets, and made westward expansion economically viable.
Identify
Erie Canal
A 363-mile canal (completed 1825) linking the Great Lakes to the Hudson River and Atlantic trade.
Turned NYC into the nation’s commercial capital and accelerated northern economic dominance.
Describe
Telegraph
Samuel F. B. Morse’s 1844 invention sending electrical messages over wires, making long-distance communication nearly instant.
Enabled coordination of railroad schedules, markets, and news — tightening national economic integration.
Explain
Lowell Mills
Early industrial textile mills in Massachusetts employing mostly young women who lived in company boardinghouses.
Showed the shift from home production to factory labor and demonstrated gendered early industrial workforce patterns.
Define
Gang System
Plantation labor system where enslaved people worked in groups under constant supervision from overseers and drivers.
Produced maximum output on cotton plantations; represented the industrial discipline of slavery.
Define
Task System
Labor system on rice/coastal plantations where enslaved people completed a set list of daily tasks before earning limited free time.
Allowed some autonomy, enabling cultural survival and family/community life despite bondage.
Identify
Slave Family Life
Enslaved families created kinship networks despite being denied legal marriage or parental rights; children inherited status from their mothers.
Family served as emotional resistance, preserving humanity under a system built to destroy it.
Explain
Hush Arbors
Secret forest worship meetings where enslaved people practiced Christianity outside white supervision, blending African and Christian traditions.
Reinforced beliefs in spiritual equality and liberation; strengthened cultural identity and unity.
Describe
Silent Sabotage
Day-to-day resistance by enslaved people such as working slowly, damaging tools, feigning illness, or “accidentally” destroying crops.
Undermined plantation efficiency and asserted human agency without open rebellion.
Identify
American Colonization Society
Organization founded in 1816 promoting gradual emancipation and the relocation of free Blacks to Liberia.
Reflected white fears about free Black communities more than concern for enslaved people; failed as a large-scale solution.
Describe
Abolitionist Movement
Reform movement demanding immediate emancipation of all enslaved people without owner compensation.
David Walker and Garrison used moral arguments to redefine slavery as a national sin requiring urgent action.
Identify
Nat Turner’s Rebellion
A slave uprising in 1831 led by preacher Nat Turner, resulting in ~60 white deaths before suppression.
Provoked harsh new slave codes, literacy bans, and intensified Southern fear of rebellion.
Define
Manifest Destiny
Belief that the United States had a divine mission to expand westward across North America.
Justified the Mexican War, annexation of Texas, and new conflicts over slavery expansion.
Explain
Texas Revolution
Armed conflict where American settlers in Texas rebelled against Mexican authority (1835–1836).
Produced the independent Texas Republic and laid groundwork for U.S. annexation and war with Mexico.
Identify
Lone Star Republic
Independent nation of Texas (1836–1845) after revolution against Mexico.
Its annexation reignited political battles over slavery and territorial expansion.
Explain
James K. Polk
Expansionist president who campaigned on acquiring Oregon, lowering tariffs, restoring the treasury, and expanding west.
Oversaw the Mexican–American War and achieved dramatic territorial expansion for the U.S.
Define
Mexican–American War
War sparked by the U.S. annexation of Texas and contested borders (1846–1848).
Resulted in massive land gains but reopened the explosive question of slavery in the territories.
Identify
Treaty of Guadalupe Hidalgo
Treaty ending the Mexican–American War; Mexico ceded the Southwest to the U.S. for $15 million.
Set off major political crisis over whether new lands would be slave or free.
Explain
Compromise of 1850
Package of five bills admitting CA as a free state, granting UT/NM popular sovereignty, settling Texas debt, ending DC slave trade, and strengthening fugitive slave laws.
Created a temporary truce but the Fugitive Slave Act radicalized the North and deepened sectional anger.
Explain
Kansas–Nebraska Act (1854)
Stephen Douglas’s bill letting settlers vote on slavery and overturning 34 years of the Missouri Compromise.
Ignited national outrage; Whigs collapsed; Republicans formed to stop expansion of slavery.
Describe
Bleeding Kansas
Period of open warfare as armed proslavery “Border Ruffians” and antislavery settlers battled over Kansas’s status.
Proved Congress lost control of the slavery issue; preview of Civil War violence.
Explain
Slave Power Conspiracy
Northern belief that slaveholders manipulated the federal government to protect and spread slavery nationwide.
Fueled Republican identity and distrust of national institutions.
Identify
Evidence for Slave Power Conspiracy
Southern presidencies, gag rule on antislavery petitions, Kansas voter fraud, and proslavery Supreme Court rulings.
Strengthened Northern belief that democracy was compromised and only political confrontation could stop the spread of slavery.