The pristine grass and white uniforms of Wimbledon and the aggressive hard courts of the U.S. Open have inspired tens of thousands of amateur tennis players in North America. Millions of people watch the tournaments each year on television and the stars of recent decades are household names, but relatively few people know the history of the game. In the Middle Ages and the Renaissance it was a "jeu de paume," a game played at French and English royal courts with hands rather than rackets. The modern game, however, dates from 1874, when Major Walter Clopton Wingfield developed a variation...