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Frédéric Joliot-Curie spent most of his research career at the Radium Institute, which was founded in 1914 by his wife, Marie Curie. He was the director of the institute from 1935 to 1939, and he continued to work there until his death in 1958. The Radium Institute was a world-renowned center for research in nuclear physics, and Joliot-Curie made many important contributions to the field there.