Eugene O'Neill was born on October 16, 1888, in New York City, to James and Mary Ellen O'Neill. The O'Neills led a transient life as the family followed James' stage career. O'Neill's father was a celebrated actor who became famous for his performance in The Count of Monte Cristo. The constant traveling and the life of the theatre caused tensions between O'Neill's parents, exacerbated by Mary's addiction to morphine, a habit she started after her son's difficult delivery. Their decidedly dysfunctional family had an enormously negative effect on Eugene and his brother Jamie. After surviving his expulsion from Princeton, a suicide attempt, a bout of tuberculosis, and a failed marriage, O'Neill determined to devote his life to writing for the theatre. Familial tensions would become the subject of several of O'Neill's plays, including his most successful, Long Day's Journey into Night. In 1914, with his father's help, O'Neill published...