Come and ask, answer or inform.
| Date from | Date to | Event | Source |
|---|---|---|---|
| 1.11.1843 | Appointed Elève de Polytechnique | ref:631 | |
| 1.10.1845 | Appointed Elève du Génie Maritime | ref:631 | |
| 1.10.1847 | Appointed Sous-Ingénieur de Troisième Classe de la Marine | ref:631 | |
| 1.12.1849 | Appointed Sous-Ingénieur de Seconde Classe de la Marine | ref:631 | |
| 9.1850 | He studies the behavior of the first propeller frigate "Isly" , in Brest . | ref:631 | |
| 1852 | Le Montebello (110)
1852-1889 , Constructeur NavalFrench 110 Gun 1st Rate Screw Ship of the Line | ref:631 | |
| 13.4.1854 | Appointed Sous-Ingénieur de Première Classe de la Marine | ref:631 | |
| bef.1.1.1860 | Appointed Adjoint à la Direction des Constructions Navales de l'Arrondissement Maritime at Brest | ref:631 | |
| 3.1862 | Membre de la Commission pour l'Examen des Inventions | ref:631 | |
| 7.1862 | He is responsible for supervising the construction of vessels on behalf of the "Compagnie Générale Transatlantique" , in France and abroad . | ref:631 | |
| 10.1.1863 | Appointed Ingénieur des Constructions Navales de Seconde Classe | ref:631 | |
| aft.10.1.1863 | bef.2.1864 | He was sent to England to acquire a vessel specializing in underwater telegraphy operations . | ref:631 |
| 29.12.1866 | Appointed Chevalier de Ordre Royal de la Légion d'Honneur | ref:631 | |
| 16.10.1867 | Appointed Ingénieur des Constructions Navales de Première Classe | ref:631 | |
| bef.1.1.1869 | Appointed Membre Adjoint du Comité de l'Artillerie at Paris | ref:631 | |
| bef.1.1.1869 | Appointed Chef de Bureau à l’Administration Centrale at Paris Chef du 1er Bureau - Constructions Navales - de la 4ème Direction - Matériel - du Ministère de la Marine | ref:631 | |
| 1870 | During the siege of Paris , Assistant to Dupuy de Lome on the City Defense Committee , he built one of the first dirigible aerostats , after developing an electric motor later used on his submarine . | ref:631 | |
| 5.1876 | Appointed Adjoint à l’Inspection Générale du Génie Maritime | ref:631 | |
| aft.5.1876 | Appointed Membre de la Commission des Défenses Sous-Marines He then became interested in torpedoes and their powder propellants . | ref:631 | |
| 12.11.1876 | He was seriously injured in an accidental explosion in his laboratory at the "École Normale Supérieure" . | ref:631 | |
| 4.10.1880 | Appointed Directeur des Constructions Navales de Seconde Classe | ref:631 | |
| 1881 | Appointed Chef du Service du Génie Maritime at Cherbourg | ref:631 | |
| 5.1881 | 26.4.1891 | Retired from active service to enter the Forges and Chantiers de la Méditerranée . Taking over Dupuy de Lome's project , he drew up the plans for a submarine, the "Gymnote" , which was to be built in Toulon in 1888 . He was the true "father" of the submarine . He will die in the explosion of the laboratory where he worked . | ref:631 |