Your Polak jokes are on u....................Polish people are smart...........man oh man.........

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Marie Curie
Physicist
Marie Skłodowska Curie, born Maria Salomea Skłodowska, was a Polish and naturalized-French physicist and chemist who conducted pioneering research on radioactivity. Wikipedia
Born: November 7, 1867, Warsaw, Poland
Died: July 4, 1934, Passy, Haute-Savoie, France
Spouse: Pierre Curie (m. 1895–1906)
Discovered: Radium, Polonium
Children: Irène Joliot-Curie, Ève Curie