Walt Whitman (1819-1892) is generally considered to be the most important American poet of the 19th century. He wrote in free verse, relying heavily on the rhythms of native American speech.

In all, over a 37-year period, Walt Whitman published nine separate editions of his masterpiece, Leaves of Grass. The final, 1892 edition, is the one familiar to readers today. He has strongly influenced the direction of 20th-century American poets, especially Ezra Pound, William Carlos Williams, Carl Sandburg, and, most recently, Allen Ginsberg and other "beat" poets.

Whitman was born on May 31, 1819, in West Hills, Huntington town, Long Island, the second of nine children. His family soon moved to Brooklyn, where he attended school for a few years. By 1830 his formal education was over, and for the next five years he learned the printing trade. For about five years, beginning in 1836, he taught school, on Long Island; during this...