25 October, 1671 discovery of Iapetus

25 October 1902 discovery of 495 Eulalia and 496 Gryphia

25 October 1981 discovery of 3017 Petrovic

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25 October 1647 Death of Evangelista Torricelli

25 October 1733 Death of Giovanni Girolamo Saccheri

25 October 1786 Birth of Charles Mason in Philadelphia, Pennsylvania, USA

25 October 1877 Birth of Henry Norris Russell

25 October 1901 Birth of Dean Benjamin McLaughlin, in Brooklyn, New York, USA

25 October 1949 Death of Mary Ackworth Orr Evershed in Ewhurst, Surrey, England,

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Chronology