December is:
December 1 - World AIDS Day
December 2 - International Day for the Abolition of Slavery
December 3 - International Day of Persons with Disabilities & Giving Tuesday (USA)
December 5 - International Volunteer Day
December 7 - Pearl Harbor Remembrance Day (USA)
December 9 - International Genocide Prevention Day
December 10 - International Human Rights Day
December 15 - Bill of Rights Day
December 18 - International Migrants Day
December 20 - International Human Solidarity Day
December 29 - Wounded Knee Day
December 31 - New Year's Eve (from 2023)