On this day, December 6, in Ukraine and around the World:
Commemorative Events and Dates for Ukraine:
Day of the Armed Forces of Ukraine (AFU Day) — The main national holiday, established in honour of the adoption of the Law of Ukraine "On the Armed Forces of Ukraine" in 1991.
International Observances and Commemorative Dates:
Independence Day of Finland — The main national holiday in Finland, marking the declaration of independence from Russia in 1917.
Constitution Day in Spain — A public holiday in honour of the adoption of the Spanish Constitution in 1978.
National Day of Remembrance and Action on Violence Against Women (Canada) — A day dedicated to the memory of the victims of the mass shooting at the École Polytechnique in Montreal in 1989 and the fight against violence against women.
Foundation Day of the Capital Quito (Ecuador).
International Sweater Festival (unofficial but popular worldwide).
Birthday of Sinterklaas (Sinterklaas in the Netherlands and Belgium, traditionally celebrated on this day).
Church Dates (according to the New Calendar in Ukrainian Orthodoxy):
Day of St. Nicholas the Wonderworker (Saint Nicholas, Archbishop of Myra in Lycia) — One of the most beloved Christian holidays, especially by children. According to the Neo-Julian calendar (used by the OCU and UGCC since 2023), his memory is celebrated on December 6 (previously - December 19). He is considered the patron saint of children, travellers, and sailors.