Harold Lloyd, one of the most popular screen comedians of the 1920s, was the archetype of the shy but optimistic all-American boy. Lloyd's screen persona began to evolve in the short films he made during the 1920s, but crystallized only after he became a major star in such silent feature films as Grandma's Boy (1922) and The Freshman (1925). Lloyd's trademarks were a straw hat and horn-rimmed glasses, but he also is remembered for the "thrill comedy" of films such as Safety Last (1923), in which he scales the side of a building.