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Marie and Pierre Curie announce the isolation of radium.
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Marie Curie
Polish-French physicist and chemist (1867–1934)
Maria Salomea Skłodowska-Curie, known as Marie Curie, was a Polish and naturalised-French physicist and chemist who conducted pioneering research on radioactivity.Source: Wikipedia (CC BY-SA)
Pierre Curie
French physicist and chemist (1859–1906)
Pierre Curie was a French physicist and chemist, and a pioneer in crystallography, magnetism, and radioactivity. He shared one half of the 1903 Nobel Prize in Physics with his wife Marie Curie "in recognition of the extraordinary services they have rendered by their joint…Source: Wikipedia (CC BY-SA)
Radium
Chemical element with atomic number 88 (Ra)
Radium is a chemical element; it has symbol Ra and atomic number 88. It is the sixth element in group 2 of the periodic table, also known as the alkaline earth metals. Pure radium is silvery-white, but it readily reacts with nitrogen (rather than oxygen) upon exposure to air,…Source: Wikipedia (CC BY-SA)
December 26
Day of the year
December 26 is the 360th day of the year in the Gregorian calendar; five days remain until the end of the year.Source: Wikipedia (CC BY-SA)