Greenpeace Day
Greenpeace Day takes place every year on 15 September, marking the anniversary of the voyage that gave rise to one of the world's best-known environmental organisations. On this date in...
21 events found.
Events
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Nicaragua – Independence Day
InternationalNicaragua Independence Day is a national public holiday observed every year on 15 September. It marks the anniversary of the signing of the Act of Independence of Central America in...
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National Double Cheeseburger Day
United States , United StatesNational Double Cheeseburger Day is celebrated every year on 15 September, and in 2026 it falls on Tuesday, 15 September. The day honours one of America's most indulgent fast-food creations:...
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Guatemala – Independence Day
InternationalGuatemala Independence Day is a national holiday celebrated every year on 15 September, marking the day in 1821 when Central America declared its independence from Spanish rule. In 2026 it...
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National Neonatal Nurses Day
United States , United StatesNational Neonatal Nurses Day takes place every year on 15 September and honours the specialist nurses who care for newborn babies in their most fragile first days. In 2026 it...
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Make a Hat Day
InternationalMake a Hat Day falls on Tuesday, 15 September 2026. It is a light-hearted celebration of creativity and self-expression that invites people of all ages to design and build their...
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National Online Learning Day
National Online Learning Day is observed on 15 September each year in the United States, celebrating the transformative power of digital education and the millions of students, educators, and institutions...
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International Day for the Preservation of the Ozone Layer 2026
InternationalInternational Day for the Preservation of the Ozone Layer is observed each year on September 16 to celebrate one of our planet’s greatest environmental victories - and to reinforce the...
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Mexican Independence Day
InternationalMexican Independence Day is observed on 16 September each year, commemorating the start of Mexico's war of independence from Spain in 1810. The celebrations begin on the evening of 15...
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National GED Day
United States , United StatesNational GED Day takes place on Wednesday, 16 September 2026. The day, organised by the GED Testing Service, recognises the achievements of people who have earned their high school equivalency...
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Hari Malaysia
InternationalHari Malaysia, known in English as Malaysia Day, is the national day that commemorates the formation of the Federation of Malaysia on 16 September 1963. Observed annually on 16 September,...
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Mayflower Day
United States , United StatesMayflower Day falls on 16 September each year and commemorates the date in 1620 when the Mayflower set sail from Plymouth, England, carrying 102 passengers towards the New World. The...
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National Choose Your Chocolate Day
United States , United StatesNational Choose Your Chocolate Day takes place every year on 16 September, inviting chocolate lovers to seek out and savour their favourite variety, whether that is a creamy milk bar,...
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National Tattoo Story Day
United States , United StatesNational Tattoo Story Day takes place every year on 16 September and invites people to share the personal stories behind their tattoos. The day celebrates the idea that every piece...
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National Guacamole Day
United States , United StatesNational Guacamole Day is celebrated every year on 16 September. In 2026 it falls on Wednesday, 16 September. The day honours the much-loved avocado dip with deep roots in Mexican...
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National School Backpack Awareness Day
United States , United StatesNational School Backpack Awareness Day is held on the third Wednesday of September each year, falling on Wednesday, 16 September 2026. Organised by the American Occupational Therapy Association (AOTA), the...
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National Uniform Day
United States , United StatesNational Uniform Day is observed in the United States on the third Wednesday of September, falling on Wednesday, 16 September 2026. The day recognises the tens of millions of people...
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National Sit With a Stranger Day
United States , United StatesNational Sit With a Stranger Day takes place on Wednesday, 16 September 2026. The day encourages people to set aside their usual routine, sit beside someone they do not know,...
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National Coding Week 2026
FeaturedUnited Kingdom , United KingdomNational Coding Week is an annual event that aims to inspire people of all ages to learn digital skills, particularly coding. In a world increasingly driven by technology, coding is...
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Orchid Male Cancer Awareness Week 2026
United Kingdom , United KingdomOrchid Male Cancer Awareness Week is an annual campaign dedicated to raising awareness about male-specific cancers, including prostate, testicular, and penile cancers. Organized by the charity Orchid, this week focuses...
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Rheumatoid Arthritis Awareness Week 2026
United Kingdom , United KingdomRheumatoid Arthritis Awareness Week is an annual campaign dedicated to raising awareness about rheumatoid arthritis (RA), a chronic autoimmune disease that causes inflammation, pain, and swelling in the joints. This...
