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| Date from | Date to | Event | Source |
|---|---|---|---|
| 1838 | Appointed Elève de Polytechnique | ref:673 | |
| 19.11.1840 | Appointed Elève du Génie Maritime | ref:673 | |
| 1853 | Appointed to the "Etablissement de la Marine d’Indret" : rank ? | ref:1258 | |
| 29.12.1855 | Appointed Chevalier de Ordre Royal de la Légion d'Honneur | ref:673 | |
| 2.1859 | After numerous unsuccessful submarine projects , Admiral Hamelin , Minister , requests an execution project .Brun draws up with the "Capitaine de Vaisseau" Bourgeois , the plans of the submarine "Plongeur", equipped with a compressed air thruster .Their project is accepted. | ref:673 | |
| 31.12.1863 | Appointed Chevalier de Ordre Royal de la Légion d'Honneur | ref:673 | |
| 1871 | 1876 | Appointed Député de l'Assemblée Nationale Législative du Var | ref:673 |
| 1875 | Appointed Directeur des Constructions Navales | ref:673 | |
| 30.1.1876 | 1.1889 | Appointed Sénateur du Var | ref:673 |
| 1.1882 | Appointed Membre du Conseil d'Amirauté | ref:673 | |
| 21.2.1883 | 9.8.1883 | Appointed Ministre de la Marine et des Colonies at Paris | FWIKI |
| 10.8.1883 | Appointed Chevalier de Ordre Royal de la Légion d'Honneur | ref:673 | |
| 1884 | Retired | ref:673 |