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Welcome everyone to the month of December. We look forward to receiving your impressive posts on whatever day you decide to write. That's why the efemérides.com community warmly welcomes you to our December monthly calendar, which offers a wide variety of topics to explore. We hope you like it.

It's December, the last month of 2025, which is full of new energy and peace for everyone, as it's a month where brotherhood and love are everywhere. That's why we enthusiastically welcome our long-awaited December. For December, we have prepared a series of wonderful events for everyone. I really hope you can participate. This month has 31 days; it is a very important month, as it marks our final farewell to this wonderful year that has helped us and given us the best of days. It is with pride and love that we bid farewell to these events for this time, hoping for your receptiveness and support in all publications; I hope you like them.

December2025

• December 1st:

World AIDS Day
International Prisoners for Peace Day
Pan American Pharmacy Day
Cyber Monday
Army Abolition Day (Costa Rica)
International Seat Belt Day

• December 2nd:

World Futures Day
International Day for the Abolition of Slavery
Giving Tuesday
World Computer Literacy Day
World Fried Food Day
Colombian drug lord Pablo Escobar Gaviria dies

• December 3rd:

International Day of Persons with Disabilities
International Doctor's Day
International 3D Cinema Day
World Pesticide-Free Day
International Basque Language Day
European Marfan Syndrome Day

• December 4th:

International Bankers Day
International Day Against Unilateral Coercive Measures
International Cheetah Day
Miner's Day
International Cabernet Franc Day

• December 5th:

International Volunteer Day
World Soil Day
International Ninja Day
International Leo Club Day

• December 6th:

Spanish Constitution Day (Spain)
Declaration of the Dancing Devils of Corpus Christi as Intangible Cultural Heritage of Humanity

• December 7th:

International Civil Aviation Day
World Cotton Candy Day
Baroque Pride Day
Day of the Little Candles (Colombia)
Foundation of Maturin

• December 8th:

Feast of the Immaculate Conception

• December 9th:

International Anti-Corruption Day
International Day Against Genocide
Battle of Ayacucho

• December 10th:

Human Rights Day
International Animal Rights Day

• December 11th:

International Mountain Day
National Tango Day (Argentina)

• December 12th:

International Day of Universal Health Coverage
International Day of Neutrality

• December 13th:

National Cocoa Day (United States)

• December 14th:

World Monkey Day
International Day of Radio and Television for Children
International Choral Singing Day
National Obesity Day (Spain)

• December 15th:

World Otaku Day
Zamenhof Day
Cartagena Manifesto

• December 16th:

International Day Against Unwanted Loneliness
Cartoonist Day (Venezuela)

• December 17th:

International Day to End Violence Against Sex Workers
Death of Simón Bolívar

• December 18th:

International Migrants Day
World Arabic Language Day
National Multiple Sclerosis Day (Spain)

• December 19th:

International Emo Day

• December 20th:

International Human Solidarity Day
World Skepticism Day
World Sangria Day
Wrinkled Shirt Day
Ugly Christmas Sweater Day

• December 21th:

World Meditation Day
World Basketball Day
Winter Solstice
Summer Solstice in the Southern Hemisphere
World Snowboard Day
International Short Film Day
National Day of Mayan Culture (Mexico)
National Day of Children with Cancer (Spain)

• December 22th:

World Thermometer Day

• December 23th:

National Roots Day (United States)

• December 24th:

Christmas Eve
World Custard Day

• December 25th:

Christmas
Beginning of Hanukkah - Festival of Lights

• December 26th:

Boxing Day

• December 27th:

Birthday of Manuela Sáenz
International Day of Epidemic Preparedness

• December 28th:

April Fools' Day
International Day of World Days

• December 29th:

World Pepper Day

• December 30th:

International Indian Film Day

• December 31th:

New Year's Eve