Guillaume Thomas Raynal (April 12, 1711 - March 6, 1796) was a French writer, philosopher, and historian active during the Enlightenment. Raynal was educated as a Jesuit, but left the order for unknown reasons, and moved to Paris where he dedicated himself to the production of a number of minor but popular historical works. Raynal's histories opened doors to elite social and artistic circles where he met and befriended various members of the Philosophe Coteries. Raynal's most important work is generally considered to be a 1770 collaboration with Diderot and others entitled, L'Histoire philosophique et politique des établissements et du commerce des Européens dans les deux Indes. Some of the philosophical ideas developed in the book drew negative attention from the authorities who banned the book and posted a notice for the arrest of its authors. Raynal fled to Berlin and later to St. Petersburg, where he lived for a number of years before returning to France in 1787. Though not a cartographer Raynal's name is often attached to several Atlases by Rigobert Bonne, from whom he composed the text.