April 15, 1923 –
Dr. Lee De Forest demonstrates his Phonofilm sound-on-film process to the first paying movie audience at an invitation-only event at the Rialto Theater in New York City. (I’ve seen the date listed as March 12 as well.)
Dr. De Forest received in 1959 an honorary Oscar from the Academy of Motion Picture Arts and Sciences.
The Haus of Dcaligari 