Debates between Democratic-Republicans and Federalists continued, especially regarding foreign powers and federal power.
Barbary Pirates: Jefferson initially opposed paying tribute, but later negotiated reduced payments after attacks on US ships.
Strict vs. Loose Constructionism: Democratic-Republicans favored strict interpretation of the Constitution, while Federalists favored loose interpretation.
Louisiana Purchase: Jefferson bought Louisiana from France for 15,000,000, despite being a strict constructionist, to expand agrarian opportunities and cut off European influence.
Lewis and Clark Expedition: Explored and mapped the Louisiana territory, increasing scientific knowledge and diplomatic relations with Indians.
Supreme Court and Federal Power
Marbury v. Madison (1803): Established judicial review, increasing the Supreme Court's power.
McCulloch v. Maryland (1819): Affirmed that federal law trumps state law.
War of 1812 and Nationalism
Causes: British impressment of sailors, seizure of American ships, and conflicts with Native Americans.
Federalists opposed the war, leading to the Hartford Convention and talks of secession.
Consequences: Increased nationalism, demise of the Federalist Party, and recognition of economic weaknesses.
Henry Clay's American System
Policies: Federally funded internal improvements, protective tariffs, and a second Bank of the United States.
Madison vetoed internal improvements, but tariffs and the bank were implemented.
Missouri Compromise (1820)
Missouri's application for statehood provoked conflict over the balance of free and slave states.
Missouri was admitted as a slave state, Maine as a free state, and slavery was prohibited north of the 36°30′ line.
Territorial Expansion and Diplomacy
Treaties: Established the Canadian border at the 49th Parallel and joint US-British occupation of Oregon Territory.
Adams-Onís Treaty (1819): Spain sold Florida to the US and defined the southern border.
Monroe Doctrine (1823): Asserted US dominance in the Western Hemisphere, preventing further European influence.
Market Revolution
Linking of Northern industries with Western and Southern farms through advances in agriculture, industry, communication, and transportation.