William Wordsworth was a major English Romantic poet who, with Samuel Taylor Coleridge, helped to launch the Romantic Age in English literature with the 1798 joint publication Lyrical Ballads. Wordsworth's magnum opus is generally considered to be The Prelude, a semiautobiographical poem of his early years which the poet revised and expanded a number of times. The work was posthumously titled and published, prior to which it was generally known as the poem "to Coleridge". Wordsworth was England's Poet Laureate from 1843 until his death in 1850.