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JEAN SYLVAIN BAILLY (1736-1793)

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Originally appearing in Volume V03, Page 220 of the 1911 Encyclopedia Britannica.
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JEAN SYLVAIN See also:BAILLY (1736-1793)  , See also:French astronomer and orator, was See also:born at See also:Paris on the 15th of See also:September 1736 . Originally intended for the profession of a painter, he preferred See also:writing tragedies until attracted to See also:science by the See also:influence of See also:Nicolas de See also:Lacaille . He calculated an See also:orbit for the See also:comet-of 1759 (See also:Halley's), reduced Lacaille's observations of 515 zodiacal stars, and was, in 1763, elected a member of the See also:Academy of Sciences . His Essai sur la theorie See also:des satellites de See also:Jupiter (1766), an expansion of a memoir presented to the Academy in 1763, showed much See also:original See also:power; and it was followed up in 1771 by a noteworthy dissertation Sur See also:les inegalites de la lumiere des satellites de Jupiter . Meantime, he had gained a high See also:literary reputation by his Eloges of See also:Charles V., Lacaille, See also:Moliere, See also:Corneille and See also:Leibnitz, which were issued in a collected See also:form in 1770 and 1790; he was admitted to the French Academy (See also:February 26, 1784), and to the Academie des See also:Inscriptions in 1785, when See also:Fontenelle's simultaneous membership of all three See also:Academies was renewed in him . Thenceforth, he devoted himself to the See also:history of science, See also:publishing successively :—Histoire de l'astronomie ancienne (1775); Histoire de l'astronomie See also:modern (3 vols . 1779-1782); Lettres sur l'origine des sciences (1777) ; Lettres sur l'Atlantide de See also:Platon (1779); and Traite de l'astronomie indienne et orientale (1787) . Their erudition was, however, marred by speculative extravagances . The See also:cataclysm of the French Revolution interrupted his studies . Elected See also:deputy from Paris to the states-See also:general, he was chosen See also:president of the Third See also:Estate (May 5, 1789), led the famous proceedings in the See also:Tennis See also:Court (See also:June 20), and acted as See also:mayor of Paris (See also:July 15, 1789, to See also:November 16, 1791) . The dispersal by the See also:National Guard, under his orders, of the riotous See also:assembly in the Champ de See also:Mars (July 17, 1791) rendered him See also:obnoxious to the infuriated populace, and he retired to See also:Nantes, where he composed his Memoires d'un temoin (published in 3 vols. by MM . Berville and Barriere, 1821-1822), an incomplete narrative of the extraordinary events of his public See also:life, See also:Late in 1793, See also:Bailly quitted Nantes to join his friend See also:Pierre See also:Simon See also:Laplace at See also:Melun; but was there recognized, arrested and brought (November lo) before the Revolutionary Tribunal at Paris .

On the 12th of . November he was guillotined amid the insults of a howling See also:

mob . He met his See also:death with patient dignity, having, indeed, disastrously shared the enthusiasms of his See also:age, but taken no See also:share in its crimes . Notices of his life are contained in the Eloges by Merard de See also:Saint Just, See also:Delisle de Salles, See also:Lalande and See also:Lacretelle; in a memoir by See also:Arago, read, the 26th of February 1844 before the Academie des Sciences, and published in Notices biographiques, t. ii . (1852) . See also See also:Delambre, Histoire de l'astronomie au r8me siecle, p . 735, and Lalande, Bibliographie astronomique, p . 730 .

End of Article: JEAN SYLVAIN BAILLY (1736-1793)
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