Burr conspiracy in the context of "Presidency of Thomas Jefferson"

Francis Scott Key (August 1, 1779 – January 11, 1843) was an American lawyer, author, and poet from Frederick, Maryland, best known as the author of the poem "Defence of Fort M'Henry", which was set to a popular British tune and eventually became the American national anthem "The Star-Spangled Banner". In 1814 Key observed the British bombardment of Fort McHenry in Baltimore during the War of 1812. He was inspired upon seeing an American flag flying over the fort at dawn: his poem was published within a week with the suggested tune of the popular song "To Anacreon in Heaven". The song with Key's lyrics became known as "The Star-Spangled Banner" and slowly gained in popularity as an unofficial anthem, finally achieving official status as the national anthem more than a century later under President Herbert Hoover.

Key was a lawyer in Maryland and Washington, D.C., for four decades and worked on important cases, including the Burr conspiracy trial, and he argued numerous times before the Supreme Court. He was nominated for District Attorney for the District of Columbia by President Andrew Jackson, where he served from 1833 to 1841. He was a devout Episcopalian.

In U.S. politics, the Great Triumvirate (known also as the Immortal Trio) was a triumvirate of three statesmen who dominated American politics for much of the first half of the 19th century, namely Henry Clay of Kentucky, Daniel Webster of Massachusetts, and John C. Calhoun of South Carolina. These men's interactions in large part tell the story of politics under the Second Party System. All three were extremely active in politics, served at various times as Secretary of State, as Congressmen in the House of Representatives and served together as Senators in the Senate.

Clay, the oldest, emerged on the national political scene first, serving as counsel for Aaron Burr in his treason trial and serving two short stints in the Senate before being elected Speaker of the House of Representatives for the Twelfth Congress. Calhoun was a freshman member of this Congress and his friendship and ideological closeness with Clay helped propel him to prominence as a leader of the war hawk faction agitating for a war which would eventually be declared as the War of 1812. Webster was elected in 1813 to Congress and immediately became a leading anti-war and anti-administration Federalist. Webster wrangled with the nationalists Clay and Calhoun on post-war issues such as the chartering of the Second Bank of the United States and the Tariff of 1816. After the Fourteenth Congress, Calhoun became Secretary of War and Webster declined reelection to focus on his law practice in Boston, a practice which took him before the Supreme Court in landmark cases like Dartmouth College v. Woodward, Gibbons v. Ogden, and McCullouch v. Maryland in which he represented the Bank of the United States.

Aaron Burr, Jr. (February 6, 1756 – September 14, 1836) was an American politician, businessman, and lawyer who served as the third vice president of the United States from 1801 to 1805, during Thomas Jefferson's first presidential term. A member of the Democratic-Republican Party, he is primarily remembered for the killing of Alexander Hamilton in a duel, as well as his alleged conspiracy to take parts of the United States or the Spanish Empire to form an independent country.

Burr was born to a prominent family in what was then the Province of New Jersey. After studying theology at Princeton University, he began his career as a lawyer before joining the Continental Army as an officer in the American Revolutionary War in 1775. After leaving military service in 1779, Burr practiced law in New York City, where he became a leading politician and helped form the new Jeffersonian Democratic-Republican Party.