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Swiss-American photographer Robert Frank captured the essence of American culture in the 1950s and 1960s. Born in Switzerland in 1924, Frank immigrated to the United States in 1947 and became a naturalized citizen in 1953. His iconic black-and-white photographs, such as "The Americans," documented the complexities and contradictions of postwar American society, earning him recognition as one of the most influential photographers of the 20th century.