America: A Nation Divided, c1845–1877
Between 1845 and 1877, the United States transformed from a fragile
union into a nation scarred by civil war and reshaped by
Reconstruction. During this period, debates over slavery, state power,
and westward expansion intensified, eventually pushing the country
into conflict. The aftershocks of this era shaped American society for
generations.
These notes explain how America was formed, how divisions grew, why
war broke out, and how the nation attempted to rebuild..
The Formation of America
The Thirteen Colonies & British Control
Between 1607 and 1775, Britain established Thirteen Colonies along the
Atlantic coast. While sharing British culture and language, the colonies
developed unique economic and social identities:
• New England: trade, manufacturing, shipbuilding
• Middle Colonies: mixed farming and commerce, diverse
population
• Southern Colonies: plantation agriculture based on enslaved
labour
As distance from London allowed greater autonomy, colonists
developed strong traditions of self-government and local assemblies.
Growing Tensions
Britain increasingly tried to tax and regulate the colonies, especially
after the Seven Years’ War (1756–1763). Colonists opposed these taxes,
arguing they had no representation in Parliament.
This conflict of interests laid the foundations for revolution.
The American Revolution
Why the Colonies Rebelled
• Taxation without representation (Stamp Act, Tea Act)
• British attempts to restrict trade
• Enlightenment ideas promoting natural rights
• Desire for self-governance
• British military crackdowns (e.g., Intolerable Acts)
, Declaration of Independence (1776)
?????? Written mainly by Thomas Jefferson, the Declaration set out key
principles:
_( )_
cotton • Natural rights (life, liberty, pursuit of happiness)
bale? • Governments must protect rights
( ____) • People may overthrow tyrannical rulers
• “All men created equal”
The Declaration did not resolve the issue of slavery — a silence that would later haunt the
young nation.
The Articles of Confederation (1781–1789)
A Weak National Government
The Articles of Confederation created a very weak national
government because Americans feared repeating the tyranny of
British rule. Congress had no power to tax, no president, no national
courts, and no authority to enforce laws. Each state could make its
own currency, run its own trade policies, and ignore national decisions.
As a result, the United States had no financial stability, no consistent
legal system, and no effective way to resolve disputes. The
government was so weak that crises like Shays’ Rebellion (1786) showed
it could not maintain order.
Drawbacks
Because the Articles treated each state as almost fully sovereign, they
encouraged a political culture in which many Americans believed their
loyalty was to their state first, and the nation second. This
strengthened the idea of states’ rights, which became central to
Southern identity. Even after the Articles were replaced by the
Constitution, the belief that states had the right to control their own
institutions — especially slavery — remained powerful. This mindset later
formed the basis of Southern arguments for nullification (rejecting
federal laws) and eventually secession
,Future Problems
The failure of the Articles forced the Constitution to include major
compromises to keep Southern states in the Union, such as the Three-
Fifths Compromise and protections for the slave trade. These decisions
strengthened slaveholding states and embedded slavery deep within
the political system, guaranteeing future conflict. At the same time,
the longstanding tradition of weak national authority and strong state --------->
independence made Southerners believe they could legally and
cause
morally leave the Union when they felt threatened. Thus, although
chain _( )_
the Articles ended in 1789, their legacy of state sovereignty, weak
cotton
central authority, and unresolved tensions over slavery helped
bale?
create the conditions that made the Civil War possible.
( ____)
The Constitution (1787)
The Constitution was written because the Articles of Confederation
had created a national government too weak to function. The new
framework aimed to build a stronger, more stable United States that
could regulate trade, collect taxes, settle disputes, and provide
national leadership. Delegates wanted a government powerful enough
to hold the country together, but not strong enough to threaten
individual freedoms.
The Constitution introduced a system designed to balance authority
and prevent tyranny.
Federalism
Power was divided between the federal government and the states,
creating a dual system of authority.
Three Branches of Government
• Legislative (Congress): makes laws
• Executive (President): enforces laws
• Judicial (Supreme Court): interprets laws
Checks and Balances
Each branch could limit the power of the others, ensuring no single
group controlled the entire government.
These features made the new government much stronger than under
the Articles, but they also created ambiguity that would later fuel
sectional conflict.
, To persuade Southern states to join the stronger federal system,
delegates made several major compromises that protected slavery:
• Three-Fifths Compromise: allowed slave states to count 3/5
of enslaved people for representation, giving them extra
political power.
• Slave Trade Clause: banned Congress from ending the
international slave trade for 20 years.
• Fugitive Slave Clause: required free states to return escaped
enslaved people.
These were political deals, not moral solutions — and they created
deep structural problems.
Drawbacks
Although far stronger than the Articles, the Constitution had serious
flaws that later contributed to national breakdown:
1. Ambiguity Over State vs. Federal Power
The Constitution never clearly defined exactly where state authority
ended and federal authority began.
This allowed:
• the North to argue that federal power was supreme
• the South to argue that states remained sovereign
This disagreement later became the core of the states’ rights debate
and the justification for secession.
2. Embedding Slavery Into the National System
By protecting slavery to keep the Union together, the Constitution
built a nation where freedom and slavery coexisted uneasily.
The Three-Fifths Compromise gave Southern states more seats in
Congress, increasing their national influence.
This allowed the South to:
• block anti-slavery laws
• dominate early presidencies
• protect slavery for decades
This imbalance angered Northerners and intensified sectional
suspicion.
Between 1845 and 1877, the United States transformed from a fragile
union into a nation scarred by civil war and reshaped by
Reconstruction. During this period, debates over slavery, state power,
and westward expansion intensified, eventually pushing the country
into conflict. The aftershocks of this era shaped American society for
generations.
These notes explain how America was formed, how divisions grew, why
war broke out, and how the nation attempted to rebuild..
The Formation of America
The Thirteen Colonies & British Control
Between 1607 and 1775, Britain established Thirteen Colonies along the
Atlantic coast. While sharing British culture and language, the colonies
developed unique economic and social identities:
• New England: trade, manufacturing, shipbuilding
• Middle Colonies: mixed farming and commerce, diverse
population
• Southern Colonies: plantation agriculture based on enslaved
labour
As distance from London allowed greater autonomy, colonists
developed strong traditions of self-government and local assemblies.
Growing Tensions
Britain increasingly tried to tax and regulate the colonies, especially
after the Seven Years’ War (1756–1763). Colonists opposed these taxes,
arguing they had no representation in Parliament.
This conflict of interests laid the foundations for revolution.
The American Revolution
Why the Colonies Rebelled
• Taxation without representation (Stamp Act, Tea Act)
• British attempts to restrict trade
• Enlightenment ideas promoting natural rights
• Desire for self-governance
• British military crackdowns (e.g., Intolerable Acts)
, Declaration of Independence (1776)
?????? Written mainly by Thomas Jefferson, the Declaration set out key
principles:
_( )_
cotton • Natural rights (life, liberty, pursuit of happiness)
bale? • Governments must protect rights
( ____) • People may overthrow tyrannical rulers
• “All men created equal”
The Declaration did not resolve the issue of slavery — a silence that would later haunt the
young nation.
The Articles of Confederation (1781–1789)
A Weak National Government
The Articles of Confederation created a very weak national
government because Americans feared repeating the tyranny of
British rule. Congress had no power to tax, no president, no national
courts, and no authority to enforce laws. Each state could make its
own currency, run its own trade policies, and ignore national decisions.
As a result, the United States had no financial stability, no consistent
legal system, and no effective way to resolve disputes. The
government was so weak that crises like Shays’ Rebellion (1786) showed
it could not maintain order.
Drawbacks
Because the Articles treated each state as almost fully sovereign, they
encouraged a political culture in which many Americans believed their
loyalty was to their state first, and the nation second. This
strengthened the idea of states’ rights, which became central to
Southern identity. Even after the Articles were replaced by the
Constitution, the belief that states had the right to control their own
institutions — especially slavery — remained powerful. This mindset later
formed the basis of Southern arguments for nullification (rejecting
federal laws) and eventually secession
,Future Problems
The failure of the Articles forced the Constitution to include major
compromises to keep Southern states in the Union, such as the Three-
Fifths Compromise and protections for the slave trade. These decisions
strengthened slaveholding states and embedded slavery deep within
the political system, guaranteeing future conflict. At the same time,
the longstanding tradition of weak national authority and strong state --------->
independence made Southerners believe they could legally and
cause
morally leave the Union when they felt threatened. Thus, although
chain _( )_
the Articles ended in 1789, their legacy of state sovereignty, weak
cotton
central authority, and unresolved tensions over slavery helped
bale?
create the conditions that made the Civil War possible.
( ____)
The Constitution (1787)
The Constitution was written because the Articles of Confederation
had created a national government too weak to function. The new
framework aimed to build a stronger, more stable United States that
could regulate trade, collect taxes, settle disputes, and provide
national leadership. Delegates wanted a government powerful enough
to hold the country together, but not strong enough to threaten
individual freedoms.
The Constitution introduced a system designed to balance authority
and prevent tyranny.
Federalism
Power was divided between the federal government and the states,
creating a dual system of authority.
Three Branches of Government
• Legislative (Congress): makes laws
• Executive (President): enforces laws
• Judicial (Supreme Court): interprets laws
Checks and Balances
Each branch could limit the power of the others, ensuring no single
group controlled the entire government.
These features made the new government much stronger than under
the Articles, but they also created ambiguity that would later fuel
sectional conflict.
, To persuade Southern states to join the stronger federal system,
delegates made several major compromises that protected slavery:
• Three-Fifths Compromise: allowed slave states to count 3/5
of enslaved people for representation, giving them extra
political power.
• Slave Trade Clause: banned Congress from ending the
international slave trade for 20 years.
• Fugitive Slave Clause: required free states to return escaped
enslaved people.
These were political deals, not moral solutions — and they created
deep structural problems.
Drawbacks
Although far stronger than the Articles, the Constitution had serious
flaws that later contributed to national breakdown:
1. Ambiguity Over State vs. Federal Power
The Constitution never clearly defined exactly where state authority
ended and federal authority began.
This allowed:
• the North to argue that federal power was supreme
• the South to argue that states remained sovereign
This disagreement later became the core of the states’ rights debate
and the justification for secession.
2. Embedding Slavery Into the National System
By protecting slavery to keep the Union together, the Constitution
built a nation where freedom and slavery coexisted uneasily.
The Three-Fifths Compromise gave Southern states more seats in
Congress, increasing their national influence.
This allowed the South to:
• block anti-slavery laws
• dominate early presidencies
• protect slavery for decades
This imbalance angered Northerners and intensified sectional
suspicion.
