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Curies
Maria Skłodowska was born in Warsaw, in Congress Poland in the Russian Empire, on 7 November 1867, the fifth and youngest child of well-known teachers Bronisława, née Boguska, and Wladyslaw Skłodowski. The elder siblings of Maria (nicknamed Mania) were Zofia (born 1862, nicknamed Zosia), Józef [pl] (born 1863, nicknamed Józio), Bronislaw (born 1865, nicknamed Bronia) and Helena (born 1866, nicknamed Hela).