De 1743-08-26 à 1743-08-26 : Born De 1764 à 1764 : first chemical publication De 1763 à 1767 : studied geology De 1766 à 1766 : was awarded a gold medal by the King for an essay on the problems of urban street lighting De 1767 à 1767 : worked on a geological survey of Alsace-Lorraine De 1768 à 1768 : received a provisional appointment to the Academy of Sciences De 1769 à 1769 : elected to the Academy of Sciences De 1769 à 1769 : worked on the first geological map of France De 1777 à 1777 : Composition of the air De 1781 à 1781 : Decomposition of carbon dioxide, with work on the diamond De 1783 à 1783 : Decomposition of water: it's not an element De 1787 à 1787 : Reform of Chemical Nomenclature De 1789 à 1789 : Conservation of mass De 1794-05-08 à 1794-05-08 : Died, guillotined, in Paris