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Explore worldwide events, festivals, funny, weird, and national days on this day! It’s National Lemon Meringue Pie Day, National Relaxation Day, National Acadian Day, Kool Aid Day, National Time Management Month … and much more!
What is August 15th?
Founded in 2018 by National Day Calendar® and Tandy Leather.
There are too many monthly holidays to include here, so please check out our August Holidays page to see all of the holidays that are celebrated the entire month of August.
Unleash your brilliance on National Slay Day, where we celebrate uniqueness, spark creativity, and embrace inclusion. Take a break and treat yourself to National Relaxation Day - indulge in yoga, a hot bath, or your favorite movie for some much-needed R&R!
August 15, 2024 - Today's holidays are Assumption of Mary, Chant at the Moon Day, Chauvin Day, I Love Cowboys and Cowgirls Day, National Acadian Day …
August 15 features major celebrations like Indian Independence Day and National Aviation Day. The date marks Victory over Japan Day, National Relaxation Day, and National Lemon Meringue Pie Day.
1519: The Panama city – Panama City – was founded on this date. 1537: The city of Asunción, Paraguay was founded on this date. 1540: The Peru city of Arequipa is founded on this date. 1843: An amusement park named Tivoli Gardens opens up in Copenhagen, Denmark on this date.
Explore worldwide public holidays and observances for August 15, 2025. Our detailed calendar helps you stay informed about holidays on this date, enabling better planning for international business, travel, and cultural events.
What is National Back To School Prep Day?National Back To School Prep Day, celebrated annually on August 15th, is a day dedicated to helping students, parents, and teachers prepare for the upcoming school year.