| Date | Commemoration | Type | Anniversary |
| 01.03 | Final Apparition of Our Lady of Beauraing (1933) | Marian Apparition | 100 years |
| 01.15 | First Apparition of Our Lady of Banneux (1933) | Marian Apparition | 100 years |
| 01.25 | Promulgation of Canon Law Codex Iuris Canonici (1983) | Papal Document | 50 years |
| 02.01 | Disintegration of Space Shuttle Columbia (2003) | World Event | 30 years |
| 02.06 | Earthquake in Turkiye (2023) | World Event | 10 years |
| 02.11 | First Apparition of Our Lady of Lourdes (1858) | Marian Apparition | 175 years |
| 02.11 | Announcement of resignation of Pope Benedict XVI (2013) | Pope | 20 years |
| 02.23 | Beginning of the Darfur Genocide (2003) | World Event | 30 years |
| 02.28 | Resignation of Pope Benedict XVI (2013) | Pope | 20 years |
| 03.02 | Final Apparition of Our Lady of Banneux (1933) | Marian Apparition | 100 years |
| 03.05 | Death of Joseph Stalin (1953) | Person | 80 years |
| 03.13 | Election of Pope Francis (2013) | Pope | 20 years |
| 03.19 | Installation of Pope Francis (2013) | Pope | 20 years |
| 03.25 | Establishment of the Catholic hierarchy in Kenya, Tanzania and Uganda (1953) | Church Event | 80 years |
| 04.03 | Crucifixion and Death of Jesus Christ (33) | Church Event | 2000 years |
| 04.11 | Founding of the first diocese in North America (1658) | Church Event | 375 years |
| 04.11 | Encyclical Pacem in terris (1963) | Papal Document | 70 years |
| 04.17 | Encyclical Ecclesia de Eucharistia (2003) | Papal Document | 30 years |
| 05.03 | Death of Pope Benedict XIV (1758) | Pope | 275 years |
| 06.21 | Election of Pope Paul VI (1963) | Pope | 70 years |
| 06.22 | Karmni Grima's Call by Our Lady of Ta' Pinu (1883) | Marian Apparition | 150 years |
| 06.29 | Establishment of the Supreme Sacred Congregation of the Holy Office and the Sacred Congregation of Religious (1908) | Church Event | 125 years |
| 06.29 | Encyclical Lumen Fidei (2013) | Papal Document | 20 years |
| 07.02 | Motu Proprio Ecclesia Dei (1988) | Papal Document | 45 years |
| 07.06 | Election of Pope Clement XIII (1758) | Pope | 275 years |
| 07.06 | First Apparition of Our Lady of Akita (1973) | Marian Apparition | 60 years |
| 07.16 | Final Apparition of Our Lady of Lourdes (1858) | Marian Apparition | 175 years |
| 07.27 | End of the Korean War (1953) | World Event | 80 years |
| 08.06 | Encyclical Veritatis splendor (1993) | Papal Document | 40 years |
| 08.15 | Dedication of the Sistine Chapel (1483) | Church Event | 550 years |
| 08.29 | Weeping of Our Lady of Tears of Syracuse (1953) | Marian Apparition | 80 years |
| 09.11 | Defeat of the Ottomans in the Battle of Vienna (1683) | World Event | 350 years |
| 09.14 | Encyclical Fides et ratio (1998) | Papal Document | 35 years |
| 09.28 | Episcopal consecration of Pope John Paul II (1958) | Pope | 75 years |
| 10.07 | Attack of Hamas on Israel (2023) | World Event | 10 years |
| 10.09 | Death of Pope Pius XII (1958) | Pope | 75 years |
| 10.28 | Election of Pope John XXIII (1958) | Pope | 75 years |
| 11.12 | Great Leonid Meteor Shower (1833) | World Event | 200 years |
| 11.22 | Assassination of John F. Kennedy (1963) | World Event | 70 years |
| 11.24 | Apostolic Exhortation Evangelii Gaudium (2013) | Papal Document | 20 years |
| 12.04 | Conciliar Constitution Sacrosanctum concilium (1963) | Conciliar Document | 70 years |
| 12.04 | Conciliar Decree Inter mirifica (1963) | Conciliar Document | 70 years |
| 12.27 | Episcopal consecration of Pope John Paul I (1958) | Pope | 75 years |
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