Time Line 1866
- cultus confirmation for Saint Convoyon of Redon
- death of Blessed Maria de Mattias
- death of the writer James Smith
- death of Venerable Anastasius Hartmann
- martyrdom of Saint Siméon-François Berneux
- Institute of the Daughters of Saint Anne, Mother of Mary Immaculate founded
- birth of Blessed Carlo Liviero
- birth of Blessed Eurosia Fabris
- birth of Blessed Ignatius Klopotowski
- birth of Blessed Maria Grazia Tarallo
- birth of Saint Leopold Mandic
- birth of Saint Marie De Saint Just
- birth of Saint Marie Adolphine Dierks
- birth of Saint Mary Hermina Grivot
- birth of Venerable Maria Luisa Josefa of the Most Blessed Sacrament
- declaration of Blessed Alfonso Navarrete as Venerable
| 1865 | 1867 |
