Time Line 1840
- death of Blessed Stephen Bellesini
- death of Saint Marcelino Champagnat
- martyrdom of Saint John Gabriel Perboyre
- martyrdom of Saint Anthony Quynh Nam
- martyrdom of Saint John Baptist Thanh
- martyrdom of Saint John Baptist Con
- martyrdom of Saint Joseph Hien
- martyrdom of Saint Joseph Nghi
- martyrdom of Saint Paul Ngan
- papal approval of the Sisters of Charity of Lovere
- birth of Blessed Joseph de Veuster
- birth of Blessed Marie Leonie Paradis
- birth of Saint Henry de Osso y Cervello
| 1839 | 1841 |
