Hellenica World

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12 December 1970 launch of Uhuru, the first X-ray telescopte satellite 17

12 December 1923 discovery of 1024 Hale

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12 December 1866 Birth of Alfred Werner

12 December 1889 Death of Victor Yakovlevich Bunyakovsky

12 December 1921 Death of Henrietta Swan Leavitt

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Chronology

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