Marie Sklodowska Curie (7 November 1867 - 4 July 1934) was one of the greatest scientific minds that brought a fundamental contribution in science opening the door to the understanding/knowledge of the structure of the atom in the 20th century. Marie Sklodowska Curie's hypothesis that the spontaneous emission of powerful rays by some chemical elements, emission that she called radioactivity, is an atomic property of those elements, transformed forever how man would view the atom. Marie Sklodowska Curie is best known for her pioneering research of uranium element, developing the theory of radioactivity, devising isotope isolation/purification methods and for the discovery of chemical elements radium and polonium. Marie Sklodowska Curie's entire life's work is the story of the passion to discover scientific truth for the betterment of mankind. Irina Rabeja - MEE DCSc WorldWho'sWho