Panoramic view of the Mack Sennett's Keystone Studios, located 1712 Allessandro Avenue (later renamed Glendale Boulevard) in Edendale, now part of Echo Park. Mack Sennett (1880-1960), whose photo has been placed in the upper left corner of the image, founded the Keystone Studios in Edendale, with the help of financial backing. Many important actors started their careers with Sennett, including Mabel Normand. Charlie Chaplin, Raymond Griffith, Gloria Swanson, Ford Sterling, Andy Clyde, The Keystone Kops, Bing Crosby, and W. C. Fields. In 1917 Sennett gave up the Keystone trademark and organized Mack Sennett Comedies Corporation, producing longer comedy short films and a few feature-length films.