(1836- ), an English dramatist, born in London. He studied at London University, became a clerk in the education office and in 1862 was called to the bar. His time was devoted, however, almost entirely to literature. After producing several plays which had a moderate success, he entered into partnership with Arthur Sullivan, the composer, and in conjunction with him produced a series of comic operas. H. M. S. Pinafore, The Pirates of Penzance, The Mikado and other similar operas had a most remarkable popularity.