Date | Commemoration | Type | Anniversary |
| 01.25 | Promulgation of Canon Law Codex Iuris Canonici (1983) | Papal Document | 45 years |
| 02.01 | Disintegration of Space Shuttle Columbia (2003) | World Event | 25 years |
| 02.06 | Earthquake in Turkiye (2023) | World Event | 5 years |
| 02.07 | Death of Pope Pius IX (1878) | Pope | 150 years |
| 02.20 | Election of Pope Leo XIII (1878) | Pope | 150 years |
| 02.23 | Beginning of the Darfur Genocide (2003) | World Event | 25 years |
| 02.28 | Resignation of Pope Benedict XVI (2013) | Pope | 15 years |
| 03.05 | Death of Joseph Stalin (1953) | Person | 75 years |
| 03.13 | Election of Pope Francis (2013) | Pope | 15 years |
| 03.19 | Installation of Pope Francis (2013) | Pope | 15 years |
| 03.25 | Establishment of the Catholic hierarchy in Kenya, Tanzania and Uganda (1953) | Church Event | 75 years |
| 04.04 | Assassination of Martin Luther King Jr. (1968) | World Event | 60 years |
| 04.10 | Signing of the Good Friday Agreement of Northern Ireland (1998) | World Event | 30 years |
| 04.17 | Encyclical Ecclesia de Eucharistia (2003) | Papal Document | 25 years |
| 05.12 | May 1998 anti-Chinese riots of Indonesia (1998) | World Event | 30 years |
| 05.14 | Establishment of the State of Israel (1948) | World Event | 80 years |
| 06.30 | Illicit episcopal consecration by Archbishop Marcel Lefebvre (1988) | Church Event | 40 years |
| 07.02 | Motu Proprio Ecclesia Dei (1988) | Papal Document | 40 years |
| 07.20 | Death of Pope Leo XIII (1903) | Pope | 125 years |
| 07.25 | Encyclical Humanæ vitæ (1968) | Papal Document | 60 years |
| 07.27 | End of the Korean War (1953) | World Event | 75 years |
| 08.04 | Election of Pope Pius X (1903) | Pope | 125 years |
| 08.06 | Encyclical Veritatis splendor (1993) | Papal Document | 35 years |
| 08.26 | Election of Pope John Paul I (1978) | Pope | 50 years |
| 08.29 | Weeping of Our Lady of Tears of Syracuse (1953) | Marian Apparition | 75 years |
| 09.14 | Encyclical Fides et ratio (1998) | Papal Document | 30 years |
| 09.26 | Admission of 7 Chinese Bishops to full communion (2018) | Church Event | 10 years |
| 09.28 | Episcopal consecration of Pope John Paul II (1958) | Pope | 70 years |
| 09.28 | Death of Pope John Paul I (1978) | Pope | 50 years |
| 10.07 | Attack of Hamas on Israel (2023) | World Event | 5 years |
| 10.09 | Death of Pope Pius XII (1958) | Pope | 70 years |
| 10.16 | Election of Pope John Paul II (1978) | Pope | 50 years |
| 10.28 | Election of Pope John XXIII (1958) | Pope | 70 years |
| 11.19 | Death of Franz Schubert (1828) | Person | 200 years |
| 11.22 | Motu Proprio Tra le sollecitudini (1903) | Papal Document | 125 years |
| 12.10 | Signing of the Universal Declaration of Human Rights (1948) | World Event | 80 years |
| 12.27 | Episcopal consecration of Pope John Paul I (1958) | Pope | 70 years |
