calendar
January
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4 January - World Braille Day (A/RES/73/161)
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24 January - International Day of Education (A/RES/73/25)
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27 January - International Day of Commemoration in Memory of the Victims of the Holocaust (A/RES/60/7)
February
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4 February - World Cancer Day [WHO]
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6 February - International Day of Zero Tolerance to Female Genital Mutilation (A/RES/67/146)
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10 February - World Pulses Day (A/RES/73/251)
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11 February - International Day of Women and Girls in Science (A/RES/70/212)
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13 February - World Radio Day (A/RES/67/124)
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20 February - World Day of Social Justice (A/RES/62/10)
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21 February -International Mother Language Day (A/RES/56/262)
March
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1 March - Zero Discrimination Day [UNAIDS]
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3 March - World Wildlife Day (A/RES/68/205)
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8 March - International Women's Day
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20 March - International Day of Happiness (A/RES/66/281)
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20 March - French Language Day (French)
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21 March - International Day for the Elimination of Racial Discrimination (A/RES/2142 (XXI))
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21 March - World Poetry Day (UNESCO 30 C/Resolution 29)
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21 March - International Day of Nowruz (A/RES/64/253)
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21 March - World Down Syndrome Day (A/RES/66/149)
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21 March - International Day of Forests (A/RES/67/200)
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22 March - World Water Day (A/RES/47/193)
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23 March - World Meteorological Day [WMO] (WMO/EC-XII/Res.6)
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24 March - World Tuberculosis Day [WHO]
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24 March - International Day for the Right to the Truth concerning Gross Human Rights Violations and for the Dignity of Victims (A/RES/65/196)
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25 March - International Day of Remembrance of the Victims of Slavery and the Transatlantic Slave Trade (A/RES/62/122)
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25 March - International Day of Solidarity with Detained and Missing Staff Members
APRIL
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2 April - World Autism Awareness Day (A/RES/62/139)
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4 April - International Day for Mine Awareness and Assistance in Mine Action (A/RES/60/97)
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6 April - International Day of Sport for Development and Peace (A/RES/67/296)
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7 April - International Day of Reflection on the 1994 Genocide against the Tutsi in Rwanda (A/72/49 (Vol. III) p.186 and A/RES/58/234)
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7 April - World Health Day [WHO] (WHA/A.2/Res.35)
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12 April - International Day of Human Space Flight (A/RES/65/271)
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20 April - Chinese Language Day (Chinese)
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21 April - World Creativity and Innovation Day (A/RES/71/284)
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22 April - International Mother Earth Day (A/RES/63/278)
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23 April - World Book and Copyright Day (UNESCO 28 C/Resolution 3.18)
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23 April - English Language Day
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23 April - Spanish Language Day (Spanish)
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23 April - International Girls in ICT Day [ITU]
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24 April - International Day of Multilateralism and Diplomacy for Peace (A/RES/73/127)
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25 April - International Delegate’s Day (A/RES/73/286)
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25 April - World Malaria Day [WHO]
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26 April - International Chernobyl Disaster Remembrance Day (A/RES/71/125)
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26 April - World Intellectual Property Day [WIPO]
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28 April - World Day for Safety and Health at Work
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30 April - International Jazz Day (UNESCO 36 C/Resolution 39)
May
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2 May - World Tuna Day (A/RES/71/124)
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3 May - World Press Freedom Day (UNESCO 26 C/Resolution 4.3)
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7 May - "Vesak", the Day of the Full Moon (A/RES/54/115)
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8-9 May - Time of Remembrance and Reconciliation for Those Who Lost Their Lives During the Second World War (A/RES/59/26)
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9 May - World Migratory Bird Day [UNEP]
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15 May - International Day of Families (A/RES/47/237)
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16 May - International Day of Living Together in Peace (A/RES/72/130)
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16 May - International Day of Light [UNESCO] (UNESCO 39 C/Resolution 16)
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17 May - World Telecommunication and Information Society Day (A/RES/60/252; ITU Resolution 68/2006)
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20 May - World Bee Day (A/RES/72/211)
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21 May - International Tea Day (A/RES/74/241) (Draft Resolution II A/74/386)
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21 May - World Day for Cultural Diversity for Dialogue and Development (A/RES/57/249)
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22 May - International Day for Biological Diversity (A/RES/55/201)
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23 May - International Day to End Obstetric Fistula (A/RES/67/147)
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29 May - International Day of UN Peacekeepers (A/RES/57/129)
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31 May - World No-Tobacco Day [WHO] (WHA Resolution 42.19)
June
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4 July - International Day of Cooperatives (A/RES/47/90)
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11 July - World Population Day (UNDP decision 89/46 15, A/RES/45/216)
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15 July - World Youth Skills Day (A/RES/69/145)
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18 July - Nelson Mandela International Day (A/RES/64/13)
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20 July - World Chess Day (A/RES/74/22) (Draft Resolution A/74/PV.45)
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28 July - World Hepatitis Day [WHO]
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30 July - International Day of Friendship (A/RES/65/275)
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30 July - World Day against Trafficking in Persons (A/RES/68/192)
July
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4 July - International Day of Cooperatives (A/RES/47/90)
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11 July - World Population Day (UNDP decision 89/46 15, A/RES/45/216)
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15 July - World Youth Skills Day (A/RES/69/145)
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18 July - Nelson Mandela International Day (A/RES/64/13)
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20 July - World Chess Day (A/RES/74/22) (Draft Resolution A/74/PV.45)
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28 July - World Hepatitis Day [WHO]
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30 July - International Day of Friendship (A/RES/65/275)
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30 July - World Day against Trafficking in Persons (A/RES/68/192)
August
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8 August - International Day of the World's Indigenous Peoples (A/RES/49/214)
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12 August - International Youth Day (A/RES/54/120)
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19 August - World Humanitarian Day (A/RES/63/139)
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21 August - International Day of Remembrance and Tribute to the Victims of Terrorism (A/RES/72/165)
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22 August - International Day Commemorating the Victims of Acts of Violence Based on Religion or Belief (A/RES/73/296)
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23 August - International Day for the Remembrance of the Slave Trade and Its Abolition [UNESCO] (29 C/Resolution 40)
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29 August - International Day against Nuclear Tests (A/RES/64/35)
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30 August - International Day of the Victims of Enforced Disappearances (A/RES/65/209)
September
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5 September - International Day of Charity (A/RES/67/105)
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7 September - International Day of Clean Air for blue skies (A/RES/74/212) (Draft Resolution V A/74/381)
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8 September - International Literacy Day (UNESCO 14 C/Resolution 1.441)
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10 September - World Suicide Prevention Day [WHO]
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12 September - United Nations Day for South-South Cooperation (A/RES/58/220)
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15 September - International Day of Democracy (A/RES/62/7)
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16 September - International Day for the Preservation of the Ozone Layer (A/RES/49/114)
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18 September - International Equal Pay Day (A/RES/74/142) (Draft Resolution II A/74/399)
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21 September - International Day of Peace (A/RES/36/67) (A/RES/55/282)
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23 September - International Day of Sign Languages (A/RES/72/161)
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24 September - World Maritime Day (IMCO/C XXXVIII/21)
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26 September - International Day for the Total Elimination of Nuclear Weapons (A/RES/68/32)
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27 September - World Tourism Day
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28 September - International Day for Universal Access to Information (A/RES/74/5) [UNESCO 38 C/70]
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28 September - World Rabies Day [WHO]
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29 September - International Day of Awareness of Food Loss and Waste (A/RES/74/209)
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29 September - International Translation Day (A/RES/71/288)
October
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1 October - International Day of Older Persons (A/RES/45/106)
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2 October - International Day of Non-Violence (A/RES/61/271)
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5 October - World Teachers’ Day [UNESCO] (27 C/INF.7)
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5 October - World Habitat Day (A/RES/40/202 A)
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9 October - World Post Day (UPU/1969/Res.C.11)
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10 October - World Mental Health Day [WHO]
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10 October - World Migratory Bird Day [UNEP]
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11 October - International Day of the Girl Child (A/RES/66/170)
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13 October - International Day for Disaster Risk Reduction (A/RES/64/200)
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15 October - International Day of Rural Women (A/RES/62/136)
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16 October - World Food Day [FAO] (A/RES/35/70)
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17 October - International Day for the Eradication of Poverty (A/RES/47/196)
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20 October - World Statistics Day (A/RES/69/282)
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24 October - United Nations Day (A/RES/168 (II); A/RES/2782 (XXVI))
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24 October - World Development Information Day (A/RES/3038 (XXVII))
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27 October - World Day for Audiovisual Heritage (UNESCO 33/C/Resolution 53)
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31 October - World Cities Day (A/RES/68/239)
November
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2 November - International Day to End Impunity for Crimes against Journalists (A/RES/68/163)
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5 November - World Tsunami Awareness Day (A/RES/70/203)
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6 November - International Day for Preventing the Exploitation of the Environment in War and Armed Conflict (A/RES/56/4)
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10 November - World Science Day for Peace and Development (UNESCO 31 C/Resolution 20)
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14 November - World Diabetes Day (A/RES/61/225)
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15 November - World Day of Remembrance for Road Traffic Victims (A/RES/60/5)
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16 November - International Day for Tolerance (UNESCO 28 C/Resolution 5.61; A/RES/51/95)
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19 November - World Toilet Day (A/RES/67/291)
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19 November - World Philosophy Day (UNESCO 33 C/Resolution 37)
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20 November - Africa Industrialization Day (A/RES/44/237)
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20 November - World Children's Day (A/RES/836(IX))
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21 November - World Television Day (A/RES/51/205)
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25 November - International Day for the Elimination of Violence against Women (A/RES/54/134)
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29 November - International Day of Solidarity with the Palestinian People (A/RES/32/40B)
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30 November - Day of Remembrance for all Victims of Chemical Warfare (OPCW C-20/DEC.10)
December
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1 December - World AIDS Day
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2 December - International Day for the Abolition of Slavery (A/RES/317(IV))
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3 December - International Day of Persons with Disabilities (A/RES/47/3)
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4 December - International Day of Banks (A/RES/74/245) (Draft Resolution A/74/L.38)
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5 December - International Volunteer Day for Economic and Social Development (A/RES/40/212)
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5 December - World Soil Day (A/RES/68/232)
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7 December - International Civil Aviation Day (A/RES/51/33)
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9 December - International Day of Commemoration and Dignity of the Victims of the Crime of Genocide and of the Prevention of this Crime (A/RES/69/323)
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9 December - International Anti-Corruption Day (A/RES/58/4)
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10 December - Human Rights Day (A/RES/423 (V))
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11 December - International Mountain Day (A/RES/57/245)
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12 December - International Day of Neutrality (A/RES/71/275)
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12 December - International Universal Health Coverage Day (A/RES/72/138)
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18 December - International Migrants Day (A/RES/55/93)
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18 December - Arabic Language Day (Arabic)
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20 December - International Human Solidarity Day (A/RES/60/209)