Chronologie de l'epoque contemporaine

Consulat (1799-1804)
     Empire - Napoléon Ier (1804-1814)
           Louis XVIII (1814-1824)
                     Charles X (1824-1830)
                           Louis-Philippe (1830-1848)
                                          IIe République (1848-1852)
                                                   Second Empire - Napoléon III (1852-1870)
                                                                 Commune de Paris (1871)
                                                                  IIIe République (1871-1940)
                                                                                                 Première Guerre mondiale (1914-1918)
                                                                                                                Seconde Guerre mondiale (1939-1945)
                                                                                                                            IVe République (1946-1958)
                                                                                                                                         Ve République (1958- )

L'église est devenue paroissiale depuis le Concordat (1801)
                Rétablissement en France de la Trappe, d'où le nom de trappistes ou cisterciens réformés (1813)
                    Au cours du XIXe siècle sont installés les autels de pierre des chapelles rayonnantes.
                                            L'abbé Jean-Baptiste Muard rassemble à Pontigny un groupe de prêtres auxiliaires du                                             clergé diocésains (1842) qui deviendra la Congrégation des Pères de Saint-Edme (1849).
                                                                        Les moines cisterciens rachètent Cîteaux (1898).
                                                                                   A la suite de l'expulsion des religieux en 1901, les bâtiments sont                                                                                    rachetés par Paul Desjardins qui en fera un centre culturel et                                                                                    intellectuel d'envergure : les Décades de Pontigny (1905-1940).
                                                                                                                 Une explosion, à quelques kilomètres de l'abbaye, provoqua                                                                                                                   de nombreux dégâts dans l'église (1943).Une restauration                                                                                                                   est entreprise par la direction des Beaux-Arts.
                                                                                                                     Après la mort de Paul Desjardins, les Pères
                                                                                                                     de Saint-Edme rachètent l'abbaye et créent   
                                                                                                                     un collège franco-américain (1947-1954)
                                                                                                                                 Le Pape Pie XII établit à Pontigny le siège                                                                                                                                  de la Mission de France (1954).  
                                                                                                                                  Le séminaire de la Mission de France va                                                                                                                                   occuper les bâtiments de l'abbaye (1954-                                                                                                                                   1967). En 1967, la direction et le                                                                                                                                   séminaire sont transférés dans le Val-de-
                                                                                                                                  Marne. Pontigny devient une "prélature                                                                                                                                   territoriale" relevant de l'évêque de la                                                                                                                                   Mission de France. Les bâtiments de                                                                                                                                   l'abbaye sont occupés par un centre de                                                                                                                                   rééducation professionnel appartenant à la                                                                                                                                   Ligue pour l'Adaptation du diminué                                                                                                                                   physique au travail (ADAPT) (1968).                                                                                                                                   L'ADAPT quitte Pontigny en 2005.

Concordat (1801)
                Rétablissement de la Compagnie de Jésus par Pie VII (1814)
                                                         L’architecte Viollet-le-Duc entreprend la restauration d’importants édifices religieux et                                                          civils du Moyen Age (2e moitié du XIXe siècle)
                                                                        Décret d'expulsion hors de France des congrégations religieuses (1880)
                                                                                       Loi de Séparation de l’Eglise et de l’Etat (1905)
                                                                                                                                   Concile œcuménique de Vatican II (1962-1965)