 | 2038 | 2039 | 2040 |  |
Date | Commemoration | Type | Anniversary |
| 01.21 | Lifting of excommunication for 4 Bishops of SSPX (2009) | Church Event | 30 years |
| 02.02 | Establishment of the Pontifical Commission for Social Communications (1964) | Church Event | 75 years |
| 02.10 | Death of Pope Pius XI (1939) | Pope | 100 years |
| 02.15 | Birth of Galileo Galilei (1564) | Person | 475 years |
| 03.02 | Election of Pope Pius XII (1939) | Pope | 100 years |
| 03.12 | Coronation of Pope Pius XII (1939) | Pope | 100 years |
| 03.14 | Establishment of the Catholic hierarchy in Namibia (1994) | Church Event | 45 years |
| 04.04 | Opening of the Second Council of Lateran (1139) | Ecumenical Council | 900 years |
| 04.11 | Closing of the Second Council of Lateran (1139) | Ecumenical Council | 900 years |
| 04.11 | Establishment of the International Theological Commission (1969) | Church Event | 70 years |
| 04.15 | Fire at the Cathedral of Notre Dame of Paris (2019) | World Event | 20 years |
| 04.25 | Establishment of the Catholic hierarchy in Malawi and Zambia (1959) | Church Event | 80 years |
| 04.30 | Inauguration of George Washington as the first President of USA (1789) | Person | 250 years |
| 05.05 | Beginning of the French Revolution (1789) | World Event | 250 years |
| 05.08 | Establishment of the Sacred Congregation for the Causes of Saints (1969) | Church Event | 70 years |
| 05.16 | First Apparition of Our Lady of Laus (1664) | Marian Apparition | 375 years |
| 05.19 | Establishment of the Secretariat for Non-Christians (1964) | Church Event | 75 years |
| 06.04 | Tiananmen Square Massacre (1989) | World Event | 50 years |
| 06.28 | Assassination of Archduke Franz Ferdinand of Austria (1914) | World Event | 125 years |
| 06.29 | Encyclical Caritas in Veritate (2009) | Papal Document | 30 years |
| 07.06 | Closing of the Council of Basel, Ferrara and Florence (1439) | Ecumenical Council | 600 years |
| 07.14 | Storming of the Bastille in Paris (1789) | World Event | 250 years |
| 07.20 | First Man on the Moon (1969) | World Event | 70 years |
| 07.25 | Independence of Portugal (1139) | World Event | 900 years |
| 07.28 | Beginning of World War I (1914) | World Event | 125 years |
| 08.02 | Establishment of the Sacred Congregation of the Council (1564) | Church Event | 475 years |
| 08.07 | Bull Sollicitudo omnium ecclesiarum restoring the Society of Jesus (Jesuits) (1814) | Church Event | 225 years |
| 08.12 | Death of Pope Innocent XI (1689) | Pope | 350 years |
| 08.20 | Death of Pope Pius X (1914) | Pope | 125 years |
| 09.01 | Beginning of World War II (1939) | World Event | 100 years |
| 09.03 | Election of Pope Benedict XV (1914) | Pope | 125 years |
| 09.13 | Dedication of Italy To the Immaculate Heart of Mary (1959) | Church Event | 80 years |
| 10.01 | Founding of the People's Republic of China (1949) | World Event | 90 years |
| 10.06 | Election of Pope Alexander VIII (1689) | Pope | 350 years |
| 11.01 | Encyclical Ad beatissimi Apostolorum Principis (1914) | Papal Document | 125 years |
| 11.04 | Apostolic Constitution Anglicanorum cœtibus (2009) | Papal Document | 30 years |
| 11.06 | Founding of the first diocese in the United States of America (1789) | Church Event | 250 years |
| 11.09 | Fall of Berlin Wall (1989) | World Event | 50 years |
| 11.10 | Establishment of the Catholic hierarchy in Burundi and Rwanda (1959) | Church Event | 80 years |
| 11.20 | Dedication of Basilica of the National Shrine of the Immaculate Conception (1959) | Church Event | 80 years |
| 11.21 | Conciliar Constitution Lumen gentium (1964) | Conciliar Document | 75 years |
| 11.21 | Conciliar Decree Orientalium Ecclesiarum (1964) | Conciliar Document | 75 years |
| 11.21 | Conciliar Decree Unitatis redintegratio (1964) | Conciliar Document | 75 years |
| 11.28 | Last Apparition of Our Lady of Kibeho (1989) | Marian Apparition | 50 years |
| 12.09 | Death of Archbishop Fulton Sheen (1979) | Person | 60 years |
| 12.13 | Sacerdotal Ordination of Jorge Bergoglio (1969) | Pope | 70 years |
| 12.25 | Solemn Convocation of the Second Vatican Council (1959) | Ecumenical Council | 80 years |
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