Gaspard Monge, Comte de Peluse (1746-1818) was a French mathematician and the inventor of descriptive geometry. After a year at the ecole Royale he was asked to produce a plan for a fortification in such a way as to optimize its defensive arrangement. There was an established method for doing this, but he devised a way of solving the problems by using drawings. The value of the work was recognized. The French Revolution completely changed the course of his career. He became friendly with of Napoleon and was appointed as the Director of the ecole Polytechnique. He joined Napoleon's expedition to Egypt, taking part with Berthollet and in the scientific work of the Institut d'egypte and Egyptian Institute of Sciences and Arts. Monge was appointed president of the Egyptian commission, and he resumed his connection with the ecole Polytechnique. His remains was later transferred to the Pantheon in Paris. His is one of the 72 names inscribed on the Eiffel Tower.