Date | Commemoration | Type | Anniversary |
| 01.01 | Establishment of the Catholic hierarchy in Myanmar (1955) | Church Event | 70 years |
| 01.01 | Establishment of the Catholic hierarchy in Zimbabwe (1955) | Church Event | 70 years |
| 01.28 | Birth of Pope Clement IX (1600) | Pope | 425 years |
| 02.07 | Election of Pope Julius III (1550) | Pope | 475 years |
| 02.11 | Establishment of the Pontifical Commission for the Pastoral Assistance to Health Care Workers (1985) | Church Event | 40 years |
| 02.12 | Beheading of 21 Coptic Martyrs in Sirte, Libya (2015) | World Event | 10 years |
| 02.13 | Death of Sister Lúcia dos Santos, Fatima visionary (2005) | Person | 20 years |
| 02.15 | Election of Pope Pius VI (1775) | Pope | 250 years |
| 02.28 | Founding of the first diocese in Costa Rica (1850) | Church Event | 175 years |
| 03.01 | Death of Maximin Giraud of La Salette (1875) | Person | 150 years |
| 03.06 | Birth of Michelangelo (1475) | Person | 550 years |
| 03.14 | Election of Pope Pius VII (1800) | Pope | 225 years |
| 03.19 | Episcopal consecration of Pope John XXIII (1925) | Pope | 100 years |
| 03.25 | Encyclical Evangelium vitæ (1995) | Papal Document | 30 years |
| 03.29 | Rededication of England as the Dowry of Mary (2020) | Church Event | 5 years |
| 03.31 | Birth of Pope Benedict XIV (1675) | Pope | 350 years |
| 04.02 | Death of Pope John Paul II (2005) | Pope | 20 years |
| 04.15 | First Apparition of Our Lady of Cuapa (1980) | Marian Apparition | 45 years |
| 04.16 | Beginning of the Battle of Berlin (1945) | World Event | 80 years |
| 04.17 | Beginning of the Cambodian Genocide (1975) | World Event | 50 years |
| 04.18 | Establishment of the Catholic hierarchy in Nigeria, Ghana, Cameroon and Sierra Leone (1950) | Church Event | 75 years |
| 04.19 | Election of Pope Benedict XVI (2005) | Pope | 20 years |
| 04.28 | Death of Benito Mussolini (1945) | Person | 80 years |
| 04.30 | Suicide of Adolf Hitler (1945) | World Event | 80 years |
| 04.30 | Fall of Saigon (1975) | World Event | 50 years |
| 05.01 | Rededication of USA and Canada to Mary, Mother of the Church (2020) | Church Event | 5 years |
| 05.01 | Dedication of Italy to the Immaculate Heart of Mary (2020) | Church Event | 5 years |
| 05.08 | Victory in Europe Day (1945) | World Event | 80 years |
| 05.24 | Encyclical Laudato si’ (2015) | Papal Document | 10 years |
| 05.25 | Encyclical Ut unum sint (1995) | Papal Document | 30 years |
| 06.19 | Opening of the First Council of Nicaea (325) | Ecumenical Council | 1700 years |
| 06.25 | Beginning of the Korean War (1950) | World Event | 75 years |
| 07.07 | Sacerdotal Ordination of Pope John Paul I (1935) | Pope | 90 years |
| 07.10 | Declaration of independence of Bolivia (1825) | World Event | 200 years |
| 07.11 | Beginning of the Bosnian Genocide (1995) | World Event | 30 years |
| 07.25 | Closing of the First Council of Nicaea (325) | Ecumenical Council | 1700 years |
| 08.06 | Dropping of Atomic Bomb in Hiroshima (1945) | World Event | 80 years |
| 08.09 | Dropping of Atomic Bomb in Nagasaki (1945) | World Event | 80 years |
| 08.17 | Proclamation of Indonesian Independence (1945) | World Event | 80 years |
| 08.25 | Declaration of independence of Uruguay (1825) | World Event | 200 years |
| 09.02 | End of World War II (1945) | World Event | 80 years |
| 09.02 | Independence Day of Vietnam (1945) | World Event | 80 years |
| 09.14 | Establishment of the Catholic hierarchy in Cote d’Ivoire, Central African Republic, Guinea, Gabon, Congo-Brazzaville, Mali, Madagascar, Chad and Togo (1955) | Church Event | 70 years |
| 09.27 | Death of Pope Innocent XII (1700) | Pope | 325 years |
| 09.29 | Restoration of the Catholic hierarchy in England and Wales (1850) | Church Event | 175 years |
| 10.13 | Last Apparition of Our Lady of Cuapa (1980) | Marian Apparition | 45 years |
| 10.28 | Conciliar Decree Christus Dominus (1965) | Conciliar Document | 60 years |
| 10.28 | Conciliar Decree Perfectæ caritatis (1965) | Conciliar Document | 60 years |
| 10.28 | Conciliar Decree Optatam totius (1965) | Conciliar Document | 60 years |
| 10.28 | Conciliar Declaration Gravissimum educationis (1965) | Conciliar Document | 60 years |
| 10.28 | Conciliar Declaration Nostra ætate (1965) | Conciliar Document | 60 years |
| 11.01 | Definition of the Dogma of the Assumption of the Blessed Virgin Mary (1950) | Church Event | 75 years |
| 11.01 | Beginning of the Vietnam war (1955) | World Event | 70 years |
| 11.13 | Paris terrorist attacks (2015) | World Event | 10 years |
| 11.18 | Conciliar Constitution Dei verbum (1965) | Conciliar Document | 60 years |
| 11.18 | Conciliar Decree Apostolicam actuositatem (1965) | Conciliar Document | 60 years |
| 11.18 | Letter of Reconciliation of the Polish Bishops to the German Bishops (1965) | Church Event | 60 years |
| 11.20 | Death of Francisco Franco (1975) | Person | 50 years |
| 11.23 | Election of Pope Clement XI (1700) | Pope | 325 years |
| 12.07 | Conciliar Constitution Gaudium et spes (1965) | Conciliar Document | 60 years |
| 12.07 | Conciliar Decree Ad gentes (1965) | Conciliar Document | 60 years |
| 12.07 | Conciliar Decree Presbyterorum ordinis (1965) | Conciliar Document | 60 years |
| 12.07 | Conciliar Declaration Dignitatis humanæ (1965) | Conciliar Document | 60 years |
| 12.07 | Joint Declaration between Pope Paul VI and Ecumenical Patriarch Athenagoras I (1965) | Church Event | 60 years |
| 12.08 | Closing of the Second Vatican Council (1965) | Ecumenical Council | 60 years |
| 12.08 | Reconsecration of altar of Cathedral of Notre Dame of Paris (2024) | Church Event | 1 year |
| 12.11 | Encyclical Quas Primas (1925) | Papal Document | 100 years |
| 12.18 | Establishment of the Catholic hierarchy in Tunisia (1965) | Church Event | 60 years |
| 12.25 | Encyclical Deus caritas est (2005) | Papal Document | 20 years |
