 | 2004 | 2005 | 2006 |  |
Date | Commemoration | Type | Anniversary |
| 01.01 | Establishment of the Catholic hierarchy in Myanmar (1955) | Church Event | 50 years |
| 01.01 | Establishment of the Catholic hierarchy in Zimbabwe (1955) | Church Event | 50 years |
| 01.07 | Death of Pope Innocent X (1655) | Pope | 350 years |
| 02.11 | Establishment of the Pontifical Commission for the Pastoral Assistance to Health Care Workers (1985) | Church Event | 20 years |
| 02.11 | Establishment of the Catholic hierarchy in Russia (2002) | Church Event | 3 years |
| 02.18 | Death of Fra Angelico (1455) | Person | 550 years |
| 02.18 | Discovery of Pluto (1930) | World Event | 75 years |
| 02.21 | Death of Pope Benedict XIII (1730) | Pope | 275 years |
| 02.21 | Creation of Jorge Bergoglio as Cardinal (2001) | Pope | 4 years |
| 03.03 | Death of Pope Clement VIII (1605) | Pope | 400 years |
| 03.19 | Episcopal consecration of Pope John XXIII (1925) | Pope | 80 years |
| 03.23 | Death of Pope Julius III (1555) | Pope | 450 years |
| 03.25 | Encyclical Evangelium vitæ (1995) | Papal Document | 10 years |
| 04.01 | Election of Pope Leo XI (1605) | Pope | 400 years |
| 04.07 | Election of Pope Alexander VII (1655) | Pope | 350 years |
| 04.09 | Election of Pope Marcellus II (1555) | Pope | 450 years |
| 04.15 | First Apparition of Our Lady of Cuapa (1980) | Marian Apparition | 25 years |
| 04.16 | Beginning of the Battle of Berlin (1945) | World Event | 60 years |
| 04.17 | Beginning of the Cambodian Genocide (1975) | World Event | 30 years |
| 04.24 | Beginning of the Armenian Genocide (1915) | World Event | 90 years |
| 04.27 | Death of Pope Leo XI (1605) | Pope | 400 years |
| 04.28 | Death of Benito Mussolini (1945) | Person | 60 years |
| 04.30 | Suicide of Adolf Hitler (1945) | World Event | 60 years |
| 04.30 | Fall of Saigon (1975) | World Event | 30 years |
| 05.01 | Death of Pope Marcellus II (1555) | Pope | 450 years |
| 05.08 | Victory in Europe Day (1945) | World Event | 60 years |
| 05.13 | Birth of Pope Innocent XIII (1655) | Pope | 350 years |
| 05.16 | Election of Pope Paul V (1605) | Pope | 400 years |
| 05.23 | Election of Pope Paul IV (1555) | Pope | 450 years |
| 05.25 | Encyclical Ut unum sint (1995) | Papal Document | 10 years |
| 06.05 | Establishment of the Secretariat on Christian Unity (1960) | Church Event | 45 years |
| 07.07 | Sacerdotal Ordination of Pope John Paul I (1935) | Pope | 70 years |
| 07.11 | Beginning of the Bosnian Genocide (1995) | World Event | 10 years |
| 07.12 | Election of Pope Clement XII (1730) | Pope | 275 years |
| 07.18 | First Apparition of Our Lady of the Miraculous Medal (1830) | Marian Apparition | 175 years |
| 08.06 | Dropping of Atomic Bomb in Hiroshima (1945) | World Event | 60 years |
| 08.09 | Dropping of Atomic Bomb in Nagasaki (1945) | World Event | 60 years |
| 08.17 | Proclamation of Indonesian Independence (1945) | World Event | 60 years |
| 09.02 | End of World War II (1945) | World Event | 60 years |
| 09.02 | Independence Day of Vietnam (1945) | World Event | 60 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 | 50 years |
| 09.14 | Encyclical Fides et ratio (1998) | Papal Document | 7 years |
| 10.13 | Last Apparition of Our Lady of Cuapa (1980) | Marian Apparition | 25 years |
| 10.15 | Rededication of Cologne Cathedral (1880) | Church Event | 125 years |
| 10.28 | Conciliar Decree Christus Dominus (1965) | Conciliar Document | 40 years |
| 10.28 | Conciliar Decree Perfectæ caritatis (1965) | Conciliar Document | 40 years |
| 10.28 | Conciliar Decree Optatam totius (1965) | Conciliar Document | 40 years |
| 10.28 | Conciliar Declaration Gravissimum educationis (1965) | Conciliar Document | 40 years |
| 10.28 | Conciliar Declaration Nostra ætate (1965) | Conciliar Document | 40 years |
| 10.30 | Birth of Pope Clement XIV (1705) | Pope | 300 years |
| 11.01 | Earthquake at Lisbon (1755) | World Event | 250 years |
| 11.01 | Beginning of the Vietnam war (1955) | World Event | 50 years |
| 11.18 | Conciliar Constitution Dei verbum (1965) | Conciliar Document | 40 years |
| 11.18 | Conciliar Decree Apostolicam actuositatem (1965) | Conciliar Document | 40 years |
| 11.18 | Letter of Reconciliation of the Polish Bishops to the German Bishops (1965) | Church Event | 40 years |
| 11.20 | Death of Francisco Franco (1975) | Person | 30 years |
| 11.24 | Establishment of the Catholic hierarchy in Vietnam (1960) | Church Event | 45 years |
| 11.27 | Final Apparition of Our Lady of the Miraculous Medal (1830) | Marian Apparition | 175 years |
| 11.30 | Death of Pope Pius VIII (1830) | Pope | 175 years |
| 12.07 | Conciliar Constitution Gaudium et spes (1965) | Conciliar Document | 40 years |
| 12.07 | Conciliar Decree Ad gentes (1965) | Conciliar Document | 40 years |
| 12.07 | Conciliar Decree Presbyterorum ordinis (1965) | Conciliar Document | 40 years |
| 12.07 | Conciliar Declaration Dignitatis humanæ (1965) | Conciliar Document | 40 years |
| 12.07 | Joint Declaration between Pope Paul VI and Ecumenical Patriarch Athenagoras I (1965) | Church Event | 40 years |
| 12.08 | Closing of the Second Vatican Council (1965) | Ecumenical Council | 40 years |
| 12.10 | Apparition of Our Lady of Fatima to Lucia in Pontevedra (1925) | Marian Apparition | 80 years |
| 12.11 | Encyclical Quas Primas (1925) | Papal Document | 80 years |
| 12.13 | Founding of the Bank of the Holy Spirit (1605) | Church Event | 400 years |
| 12.18 | Establishment of the Catholic hierarchy in Tunisia (1965) | Church Event | 40 years |
| 12.26 | Indian Ocean earthquake and Indonesian tsunami (2004) | World Event | 1 year |
| 12.31 | Encyclical Casti connubii (1930) | Papal Document | 75 years |
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