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• World Red Cross and Red Crescent Day - What-When.com (May 8, 2026)
• International No Diet Day - What-When.com (May 6, 2026)
• World Portuguese Language Day - What-When.com (May 5, 2026)
• World Asthma Day - What-When.com (May 5, 2026)
• International Firefighters' Day - What-When.com (May 4, 2026)
• World Press Freedom Day - What-When.com (May 3, 2026)
• World Tuna Day - What-When.com (May 2, 2026)
• International Workers' Day - What-When.com (May 1, 2026)
• International Jazz Day - What-When.com (April 30, 2026)
• International Dance Day - What-When.com (April 29, 2026)
• World Intellectual Property Day - What-When.com (April 26, 2026)
• World Malaria Day - What-When.com (April 25, 2026)
• International Delegate's Day - What-When.com (April 25, 2026)
• World Book Day - What-When.com (April 23, 2026)
• International Mother Earth Day - What-When.com (April 22, 2026)
• World Creativity and Innovation Day - What-When.com (April 21, 2026)
• International Plant Appreciation Day - What-When.com (April 19, 2026)
• World Heritage Day - What-When.com (April 18, 2026)
• World Hemophilia Day - What-When.com (April 17, 2026)
• World Art Day - What-When.com (April 15, 2026)
• World Chagas Disease Day - What-When.com (April 14, 2026)
• World Parkinson's Day - What-When.com (April 11, 2026)
• International Romani Day - What-When.com (April 8, 2026)
• World Health Day - What-When.com (April 7, 2026)
• World Autism Awareness Day - What-When.com (April 2, 2026)
• World Theatre Day - What-When.com (March 27, 2026)
• World Tuberculosis Day - What-When.com (March 24, 2026)
• World Meteorological Day - What-When.com (March 23, 2026)
• World Water Day - What-When.com (March 22, 2026)
• World Poetry Day - What-When.com (March 21, 2026)
• World Down Syndrome Day - What-When.com (March 21, 2026)
• Global Recycling Day - What-When.com (March 18, 2026)
• World Consumer Rights Day - What-When.com (March 15, 2026)
• World Sleep Day - What-When.com (March 13, 2026)
• World Kidney Day - What-When.com (March 12, 2026)
• International Women's Day - What-When.com (March 8, 2026)
• World Engineering Day for Sustainable Development - What-When.com (March 4, 2026)
• World Hearing Day - What-When.com (March 3, 2026)
• International Writers' Day - What-When.com (March 3, 2026)
• International Sex Workers' Rights Day - What-When.com (March 3, 2026)
• World Civil Defence Day - What-When.com (March 1, 2026)
• World Rare Disease Day - What-When.com (February 28, 2026)
• World NGO Day - What-When.com (February 27, 2026)
• International Stand Up to Bullying Day - What-When.com (February 25, 2026)
• World Bartender Day - What-When.com (February 24, 2026)
• World Engineer's Day - What-When.com (February 23, 2026)
• World Thinking Day - What-When.com (February 22, 2026)
• International Mother Language Day - What-When.com (February 21, 2026)
• World Whale Day - What-When.com (February 18, 2026)
• World Human Spirit Day - What-When.com (February 17, 2026)
• International Childhood Cancer Day - What-When.com (February 15, 2026)
• International Book Giving Day - What-When.com (February 14, 2026)
• World Radio Day - What-When.com (February 13, 2026)
• World Pulses Day - What-When.com (February 10, 2026)
• World Wetlands Day - What-When.com (February 2, 2026)
• International Zebra Day - What-When.com (January 31, 2026)
• World Leprosy Day - What-When.com (January 30, 2026)
• International Customs Day - What-When.com (January 26, 2026)
• World Hug Day - What-When.com (January 21, 2026)
• World Quark Day - What-When.com (January 19, 2026)
• World Religion Day - What-When.com (January 17, 2026)
• International Hot and Spicy Food Day - What-When.com (January 16, 2026)
• World Logic Day - What-When.com (January 14, 2026)
• World Kiss Day - What-When.com (January 12, 2026)
• International Thank You Day - What-When.com (January 11, 2026)
• World Hindi Day - What-When.com (January 10, 2026)
• International Choreographers Day - What-When.com (January 9, 2026)
• World Typing Day - What-When.com (January 8, 2026)
• World Braille Day - What-When.com (January 4, 2026)
• Global Family Day - What-When.com (January 1, 2026)
• International Human Solidarity Day - What-When.com (December 20, 2025)
• International Migrants Day - What-When.com (December 18, 2025)
• International Tea Day - What-When.com (December 15, 2025)
• International Mountain Day - What-When.com (December 11, 2025)
• International Anti-Corruption Day - What-When.com (December 9, 2025)
• International Civil Aviation Day - What-When.com (December 7, 2025)
• World Soil Day - What-When.com (December 5, 2025)
• World AIDS Day - What-When.com (December 1, 2025)
• World Television Day - What-When.com (November 21, 2025)
• World Fisheries Day - What-When.com (November 21, 2025)
• World Children's Day - What-When.com (November 20, 2025)
• World Philosophy Day - What-When.com (November 19, 2025)
• World Toilet Day - What-When.com (November 19, 2025)
• World Diabetes Day - What-When.com (November 14, 2025)
• World Kindness Day - What-When.com (November 13, 2025)
• World Pneumonia Day - What-When.com (November 12, 2025)
• World Science Day for Peace and Development - What-When.com (November 10, 2025)
• World Vegan Day - What-When.com (November 1, 2025)
• World Savings Day - What-When.com (October 31, 2025)
• World Cities Day - What-When.com (October 31, 2025)
• World Stroke Day - What-When.com (October 29, 2025)
• International Animation Day - What-When.com (October 28, 2025)
• World Development Information Day - What-When.com (October 24, 2025)
• International Stuttering Awareness Day - What-When.com (October 22, 2025)
• VR/AR Day - What-When.com (October 19, 2025)
• Open Source Day - What-When.com (October 18, 2025)
• World Menopause Day - What-When.com (October 18, 2025)
• Dress Up Your Pet Day - What-When.com (October 17, 2025)
• World Food Day - What-When.com (October 16, 2025)
• Strange Music Day - What-When.com (October 16, 2025)
• Mothers Day Us - What-When.com (October 15, 2025)
• No Housework Day - What-When.com (October 15, 2025)
• Forgiveness Day - What-When.com (October 14, 2025)
• Easter Sunday - What-When.com (October 14, 2025)
• World Standards Day - What-When.com (October 14, 2025)
• Nothing Day - What-When.com (October 13, 2025)
• Animal Rescue Day - What-When.com (October 12, 2025)
• Christmas Day - What-When.com (October 12, 2025)
• World Migratory Bird Day - What-When.com (October 11, 2025)
• Pet Health Day - What-When.com (October 11, 2025)
• Fathers Day Us - What-When.com (October 11, 2025)
• World Mental Health Day - What-When.com (October 10, 2025)
• Bird Day - What-When.com (October 10, 2025)
• Chinese New Year - What-When.com (October 9, 2025)
• Animal Rights Day - What-When.com (October 9, 2025)
• World Post Day - What-When.com (October 9, 2025)
• Eid Al Fitr - What-When.com (October 8, 2025)
• Dog Day - What-When.com (October 8, 2025)
• World Cotton Day - What-When.com (October 7, 2025)
• Winter Sports Day - What-When.com (October 7, 2025)
• Diwali - What-When.com (October 6, 2025)
• World Cerebral Palsy Day - What-When.com (October 6, 2025)
• World Habitat Day - What-When.com (October 6, 2025)
• Ramadan Start - What-When.com (October 5, 2025)
• World Teachers' Day - What-When.com (October 5, 2025)
• Swimming Day - What-When.com (October 5, 2025)
• World Animal Day - What-When.com (October 4, 2025)
• Cycling Day - What-When.com (October 4, 2025)
• International Day Of Persons With Disabilities - What-When.com (October 3, 2025)
• Soccer Day - What-When.com (October 3, 2025)
• Creative Writing Day - What-When.com (October 2, 2025)
• International Coffee Day - What-When.com (October 1, 2025)
• World Vegetarian Day - What-When.com (October 1, 2025)
• Design Day - What-When.com (October 1, 2025)
• Film Day - What-When.com (September 30, 2025)
• International Translation Day - What-When.com (September 30, 2025)
• Literature Day - What-When.com (September 29, 2025)
• Museum Day - What-When.com (September 28, 2025)
• World Tourism Day - What-When.com (September 27, 2025)
• Digital Art Day - What-When.com (September 27, 2025)
• International Week Of Science And Peace - What-When.com (September 26, 2025)
• Financial Literacy Day - What-When.com (September 26, 2025)
• World Maritime Day - What-When.com (September 25, 2025)
• Martin Luther King Day - What-When.com (September 25, 2025)
• Work Life Balance Day - What-When.com (September 25, 2025)
• Productivity Day - What-When.com (September 24, 2025)
• International Day Of Education - What-When.com (September 23, 2025)
• International Celebrate Bisexuality Day - What-When.com (September 23, 2025)
• Mentoring Day - What-When.com (September 23, 2025)
• World Car-Free Day - What-When.com (September 22, 2025)
• Entrepreneurship Day - What-When.com (September 22, 2025)
• Science Fiction Day - What-When.com (September 21, 2025)
• World Alzheimer's Day - What-When.com (September 21, 2025)
• Biology Day - What-When.com (September 20, 2025)
• International Talk Like a Pirate Day - What-When.com (September 19, 2025)
• Physics Day - What-When.com (September 19, 2025)
• International Equal Pay Day - What-When.com (September 18, 2025)
• Astronomy Day - What-When.com (September 18, 2025)
• IoT Day - What-When.com (September 18, 2025)
• International Day Of Older Persons - What-When.com (September 18, 2025)
• World Patient Safety Day - What-When.com (September 17, 2025)
• STEM Day - What-When.com (September 17, 2025)
• Pancake Day - What-When.com (September 16, 2025)
• International Dot Day - What-When.com (September 15, 2025)
• Wine Day - What-When.com (September 15, 2025)
• Taco Day - What-When.com (September 14, 2025)
• April Fools Day - What-When.com (September 13, 2025)
• International Programmers' Day - What-When.com (September 13, 2025)
• Chocolate Day - What-When.com (September 13, 2025)
• Ice Cream Day - What-When.com (September 12, 2025)
• Self Care Day - What-When.com (September 11, 2025)
• World Suicide Prevention Day - What-When.com (September 10, 2025)
• Mindfulness Day - What-When.com (September 10, 2025)
• Stress Management Day - What-When.com (September 9, 2025)
• International Literacy Day - What-When.com (September 8, 2025)
• Sleep Awareness Day - What-When.com (September 8, 2025)
• Nutrition Day - What-When.com (September 7, 2025)
• International Vulture Awareness Day - What-When.com (September 6, 2025)
• International Day Of Charity - What-When.com (September 6, 2025)
• Meditation Day - What-When.com (September 6, 2025)
• International Bacon Day - What-When.com (September 6, 2025)
• Green Transportation Day - What-When.com (September 5, 2025)
• Europe Day - What-When.com (September 5, 2025)
• Nelson Mandela Day - What-When.com (September 4, 2025)
• Wildlife Conservation Day - What-When.com (September 4, 2025)
• Plastic Free Day - What-When.com (September 3, 2025)
• World Coconut Day - What-When.com (September 2, 2025)
• Biodiversity Day - What-When.com (September 2, 2025)
• World Letter Writing Day - What-When.com (September 1, 2025)
• Clean Air Day - What-When.com (September 1, 2025)
• Tree Planting Day - What-When.com (August 31, 2025)
• Cloud Security Day - What-When.com (August 31, 2025)
• International Overdose Awareness Day - What-When.com (August 31, 2025)
• International Whale Shark Day - What-When.com (August 30, 2025)
• Ocean Cleanup Day - What-When.com (August 30, 2025)
• Robotics Day - What-When.com (August 30, 2025)
• Zero Waste Day - What-When.com (August 29, 2025)
• Blockchain Day - What-When.com (August 29, 2025)
• Women in Tech Day - What-When.com (August 28, 2025)
• Tech Independence Day - What-When.com (August 28, 2025)
• Palm Sunday - What-When.com (August 27, 2025)
• Digital Detox Day - What-When.com (August 27, 2025)
• Digital Transformation Day - What-When.com (August 27, 2025)
• International Dog Day - What-When.com (August 26, 2025)
• World Coding Day - What-When.com (August 26, 2025)
• Web Development Day - What-When.com (August 26, 2025)
• World Daffodil Day - What-When.com (August 25, 2025)
• Safer Internet Day - What-When.com (August 25, 2025)
• Big Data Day - What-When.com (August 25, 2025)
• Digital Literacy Day - What-When.com (August 24, 2025)
• World AI Day - What-When.com (August 24, 2025)
• Maundy Thursday - What-When.com (August 23, 2025)
• Queen Elizabeth Birthday - What-When.com (August 21, 2025)
• Anzac Day - What-When.com (August 20, 2025)
• World Mosquito Day - What-When.com (August 20, 2025)
• World Photography Day - What-When.com (August 19, 2025)
• Towel Day - What-When.com (August 18, 2025)
• Spring Bank Holiday - What-When.com (August 17, 2025)
• Canada Day - What-When.com (August 16, 2025)
• When is Remembrance Day? - What-When.com (August 15, 2025)
• When is World Teacher’s Day? - What-When.com (August 14, 2025)
• When is Labor Day? - What-When.com (August 13, 2025)
• When is Thanksgiving? - What-When.com (August 12, 2025)
• When is Black Friday? - What-When.com (August 12, 2025)
• When is Halloween? - What-When.com (August 12, 2025)