Thomas Edison’s phonograph was the first machine to reproduce the human voice. In December 1877, Edison’s associates assembled a device on which Edison recorded the words of the nursery rhyme “Mary Had a Little Lamb.” The prototype consisted of a…

John Everett Millais’s (1829-1896) The Blind Girl (1856) shows a blind musician with a concertina in her lap, and a little girl, presumed to be her sister, resting on the roadside after a rainstorm. They are on their way toward Winchelsea, whose…