Clay, Henry (1777-1852), American statesman, who was secretary of state under John Quincy Adams and an unsuccessful candidate for the presidency in 1824, 1832, and 1844. He was one of the most popular and influential political leaders in American history. His genius in the art of compromise three times resolved bitter political conflicts that threatened to tear the nation apart, winning him the title The Great Pacificator.Clay was born on April 12, 1777, in Hanover County, Virginia, to a middle-class family. After studying for the bar with the eminent George Wythe, Clay, at the age of 20, moved to Lexington, Kentucky, where he developed a thriving practice. He was blessed with a quick mind, a flair for oratory, and an ability to charm both sexes with his easy, attractive manner. That he loved to drink and gamble was no drawback in an age that admired both vices. Clay, ambitious for worldly success, married into a wealthy and socially prominent family and soon gained entry into Kentucky's most influential circles. While still in his 20s, he was elected to the state legislature, in which he served for six years, until 1809.Clay established his great reputation in the United States House of Representatives, where he served intermittently from 1811 to 1825. In his first term, he became one of the leading "War Hawks"—the young men whose clamor for hostilities with England helped bring about the War of 1812. Clay was selected as one of the commissioners who in 1814 negotiated the Treaty of Ghent, ending that war. In 1820-21 it was Clay above all who engineered the Missouri Compromise, quieting the harsh controversy that had erupted by maintaining an equal balance between free and slave states. Although he himself was a slave owner, Clay's views on slavery—as on most other issues—were moderate. He was thus able to command the support of men fearful of extremism.In the presidential election of 1824, after his own candidacy h...