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Keystone Studios, founded in 1912 by Mack Sennett in California, was a pioneering film studio during the silent film era. It rose to prominence as the home of slapstick comedy, with Sennett producing and directing numerous short films featuring iconic figures like Charlie Chaplin and Mabel Normand. Keystone's innovative techniques, fast-paced gags, and exaggerated acting style left a lasting impact on the development of comedy in cinema.