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Periodic table, Mendeleyev -- 11 July 1868 discovery of 100 Hekate 16 September 1868 discovery of 105 Artemis 10 October 1868 discovery of Dione ... 31 January 1868 Birth of Theodore William Richards 15 February 1868 Death of William Rutter Dawes in Haddenham, Buckinghamshire, England, 22 March 1868 Birth of Robert Andrews Millikan 19 March 1868, Birth of Philipp Johann Heinrich in Bad Dürkheim, Rheinland-Pfalz, Germany 14 April 1868 Birth of Annie Scott Dill Russell Maunder, in Strabane, Co. Tyrone, Northern Ireland 2 May 1868, Birth of Robert Williams Wood, in Concord, Massachusetts, USA 22 May 1868 Death of Julius Plücker 14 June 1868 Death of Claude Servais Mathias Pouillet 29 June 1868 Birth of George Ellery Hale 4 July 1868 Birth of Henrietta Swan Leavitt 8 November 1868, Birth of Felix Hausdorff 1868 Birth of Wallace Clement Sabine 1868 Birth of Sören Sörensen 1868 Death of Georg Simon Plössl
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