Early American History Terms

Adams-Onís Treaty (1819)

In this 1819 treaty, Spain ceded all of Florida to the United States and surrendered its claim to territory north of the 42nd parallel in the Pacific Northwest. In return, the American government gave up its territorial claims to Texas.

American System

Championed by Speaker of the House Henry Clay, this policy proposed creating a home market for factory and farm producers by raising protective tariffs, strengthening the national bank, and financing internal transportation improvements.

Barbary Pirates Conflict

The United States engaged in naval conflict with Tripoli between 1801 and 1805 over demands for annual tribute in the Mediterranean. In 1815, another naval war was fought with Algiers to stop Mediterranean piracy against American shipping.

Battle of New Orleans (1815)

On January 8, 1815, Andrew Jackson led American forces to a victory against British veterans below New Orleans. The battle occurred two weeks after the peace treaty ending the War of 1812 had already been signed in Europe.

Battle of Tippecanoe (1811)

Indiana Governor William Henry Harrison provoked a military conflict with Native forces near Prophetstown in 1811, driving off the defenders and burning the town.

Chesapeake-Leopard Incident (1807)

A naval clash in which the British frigate Leopard opened fire on the USS Chesapeake after its captain refused to allow a search for deserters. The attack enraged the American public and increased demands for war over British impressment.

Dartmouth College v. Woodward (1819)

A landmark Supreme Court ruling in which Chief Justice John Marshall declared that corporate charters are inviolable contracts. The decision protected private contracts and economic charters from state legislative control.

Election of 1800 / Revolution of 1800

Thomas Jefferson defeated John Adams in the presidential election of 1800. The transition marked the first peaceful transfer of executive power from the Federalists to the Democratic-Republicans.

Embargo Act (1807)

Passed under Thomas Jefferson, this law prohibited American vessels from leaving for any foreign port in the world. It triggered a severe economic depression that hit New England merchants particularly hard.

Era of Good Feelings

A period during James Monroe's presidency characterized by rising American nationalism and an apparent absence of major two-party political opposition.

Erie Canal

Completed in 1825, this canal served as a primary trade route connecting eastern commercial markets with the Old Northwest.

Fulton Steamboat (Clermont)

Robert Fulton and Robert Livingston demonstrated the commercial practicality of steamboat travel by navigating the Clermont up the Hudson River in 1807.

Gabriel Prosser

Leader of a planned slave rebellion near Richmond, Virginia, in 1800 that was discovered and foiled before it could occur.

Gibbons v. Ogden (1824)

A Supreme Court decision that strengthened federal authority over interstate commerce by voiding a state-granted steamboat monopoly.

Hartford Convention (1814)

A meeting of New England Federalists who protested the War of 1812, reasserted state nullification rights, and proposed constitutional amendments.

Impressment

The British naval practice of searching neutral American merchant vessels for deserters and forcing sailors into British military service.

Interchangeable Parts

A manufacturing technique popularized by Eli Whitney using identical patterns to make gun components for rapid assembly. This system was quickly adopted to produce sewing machines, clocks, and other goods.

John Marshall

Chief Justice of the Supreme Court from 1801 to 1835 who established judicial authority and strengthened federal power over state governments.

Judicial Review

The power of the Supreme Court to declare acts of Congress unconstitutional, formally established in Marbury v. Madison.

Judiciary Act of 1801

Federalist legislation that expanded the federal judiciary and allowed John Adams to appoint "midnight judges" before leaving office.

King Cotton

The emergence of short-staple cotton as the South's primary cash crop following the invention of the cotton gin. This economic expansion expanded plantation agriculture and entrenched slavery across the region.

Lancaster Turnpike

Built in 1792, this crushed-rock toll road ran sixty miles from Philadelphia to Lancaster, launching the turnpike era in American transportation.

Lewis and Clark Expedition

An expedition led by Meriwether Lewis and William Clark from 1804 to 1806 to explore the geography, resources, and Native tribes of the Louisiana Territory.

Louisiana Purchase (1803)

The U.S. acquisition of the vast Louisiana Territory from France for $15 million, which doubled the geographical size of the nation.

Macon's Bill No. 2 (1810)

A law that reopened trade with Britain and France while authorizing the president to embargo whichever nation failed to respect American neutral shipping rights.

Marbury v. Madison (1803)

The Supreme Court case in which Chief Justice John Marshall formally established the legal principle of judicial review.

McCulloch v. Maryland (1819)

A Supreme Court ruling confirming the implied powers of Congress by upholding the Second Bank of the United States and denying state authority to tax federal institutions.

Missouri Compromise (1820)

A legislative compromise admitting Maine as a free state and Missouri as a slave state to preserve sectional balance in the Senate. It also banned slavery in the Louisiana Purchase north of latitude 36°30′.

Monroe Doctrine (1823)

A foreign policy declaration asserting that the American continents were closed to further European colonization and that foreign intervention would be treated as an unfriendly act.

Noah Webster

Author of the American Spelling Book and an expanded American dictionary designed to unify standard national language usage.

Panic of 1819

The nation's first major financial crisis, caused by land speculation in the West and credit contraction by the Second Bank of the United States.

Second Bank of the United States

Chartered by Congress in 1816, this national bank was created to restore currency stability and dominate state banking practices.

Second Great Awakening

A major wave of evangelical religious revivals starting around 1801 that emphasized personal salvation and inspired social reform efforts.

Seminole War (First)

Andrew Jackson's 1818 military invasion into Spanish Florida to stop Seminole raids along the southern border.

Tallmadge Amendment

A proposed amendment to the Missouri statehood bill that aimed to prohibit further introduction of slaves into Missouri and emancipate enslaved children upon adulthood.

Tariff of 1816

The first protective tariff in U.S. history, designed to safeguard American "infant industries" from post-war foreign imports.

Tariff of Abominations (1828)

A high protective tariff passed in 1828 that protected northern manufacturers but aroused severe opposition from southern agricultural producers.

Tecumseh

A Shawnee leader who attempted to form a united Native American confederacy across the Mississippi Valley to halt white land expansion.

Toussaint L'Ouverture

Leader of an uprising by enslaved Africans in Santo Domingo that forced Napoleon to abandon his plans for a restored French empire in North America.

Treaty of Ghent (1814)

The peace agreement ending the War of 1812 that restored pre-war territorial boundaries without resolving issues like impressment.

War Hawks

A group of nationalist congressmen elected in 1810, led by Henry Clay and John C. Calhoun, who pushed President Madison to declare war against Great Britain.

Worcester v. Georgia (1832)

A Supreme Court decision ruling that Indian tribes were distinct political communities with exclusive authority within their territorial boundaries.

36°30′ Line

The boundary line established by the Missouri Compromise separating free and slave territories within the remaining Louisiana Purchase lands.