December 2019
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| 1 | First Sunday of Advent |
| 2 | Anniversary of the Deaths of the 4 Church Women in El Salvador (1980) |
 | International Day for the Abolition of Slavery |
| 3 | Feast of St. Francis Xavier |
| International Day for the Disabled Persons |
| 6 | Feast of St. Nicholas |
| 8 | Second Sunday of Advent |
| Feast of the Immaculate Conception of the Blessed Virgin Mary |
| 10 | Anniversary of the Death of Thomas Merton (1968) |
| Human Rights Day |
| 12 | Feast of Our Lady of Guadalupe |
| 13 | Feast of St. Lucy |
| 14 | Feast of St, John of the Cross |
| 15 | Third Sunday of Advent (Gaudete Sunday) |
| International Migrants Day |
| Birthday of Chico Mendes: a Brazilian rubber tapper, trade union leader, environmentalist, and martyr. |
| Bill of Rights Day (USA) |
| 18 | Birthday of Stephen Bantu Biko (1946): an anti-Apartheid activist in South Africa most known for the development of the Black Consciousness movement. |
| 20 | International Human Solidarity Day |
| 21 | Winter Solstice |
| 22 | Fourth Sunday of Advent |
| 25 | Christmas, Feast of the Nativity of the Lord |
| 26 | Feast of St. Stephen, first Christian martyr |
| 27 | Feast of St. John, Apostle and Evangelist |
| 28 | Feast of the Holy Innocents |
| 29 | Feast of the Holy Family of Jesus, Mary and Joseph |
| Birthday of Sr. Thea Bowman, FSPA (1937) |
| 31 | New Year's Eve |
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