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Pierre Curie passed away in 1906 at the age of 46 from aplastic anemia, a rare blood disorder. He was a French physicist and chemist who conducted pioneering research on radioactivity. He was the first person to discover radioactivity and to isolate the radioactive elements polonium and radium. He shared the Nobel Prize in Physics in 1903 with his wife Marie Curie and Henri Becquerel for their work on radioactivity.