Mathematics

Columbus sailed the ocean blue, setting out from Palos de la Frontera, Spain, on this day. More information about: Christopher Columbus

Diderot and d'Alembert became directors of Encyclopedie project. They replaced de Gua, who had earlier done much to systematize analytic geometry, as director of the publishing project which was to become the celebrated Encyclopedie. More information about: Denis Diderot Jean Le Rond D'Alembert

First teaching methods book to be published in U.S. completed. Written by Christopher Dock, it was originally in German and was printed twenty years later in Germantown, Pennsylvania. The preface was dated March 27, 1770. The full title was: "Schul-ordnung; or A Simple and Thoroughly Prepared School-Management clearly setting forth not only in w...