In the 19th century, Joseph Merrick was exhibited in a freak show. In 1979, his story became a Broadway play, and then a movie in 1980. Now it’s going back to Broadway, with Bradley Cooper in the title role. Merrick was known as “The Elephant Man” because of his multiple deformities, but underneath he just wanted to be treated like anyone else. He died in 1890, and scientists have tried ever since to pinpoint what caused his disabilities.