 Towards the end of the French Revolution in 1798 Chalgrin threw up the buildings for the first Exposition des produits de l'industrie française, with an extremely tight deadline.A large circle of porticos surrounded a Temple of Industry that would hold the objects of industries that the jury had selected.After the Revolution Chalgrin extended the Collège de France and made alterations in the Palais du Luxembourg to suit it to its new use as the seat of the Directoire.