Mexican president Venustiano Carranza is assassinated. Events KDKA, a Pittsburgh Westinghouse station, transmits the first commercial radio broadcast. Eugene O'Neill's first full-length play, Beyond the Horizon , is produced on Broadway and wins a Pulitzer Prize marking the beginning of modern American drama. Rising popular interest in African-American literature sparks the beginning of the Harlem Renaissance.
Speakeasies replace saloons as the center of social activity.
The Smithsonian Institution announces Robert Goddard's work with rockets.