National days, ongoing national weeks and months, and global observances for September 25, 2026. Plus historical events and birthdays.
September 25, 2026 celebrates National Daughter's Day, plus 9 more. When it comes to offspring, National Daughter's Day on September 25 reminds us of the young women and girls in our lives. Today, spend time with your daughter or someone you think of as a daughter.
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National Quesadilla Day on September 25 encourages us to pull a chair up to the table and eat some authentic Mexican food. While it's not a sandwich or a taco, the quesadilla satisfies snack cravings while also completing a meal.
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Every year on September 25, teachers and parents worldwide read a picture book (or many!) to celebrate National Open the Magic Day. This National Day celebrates read alouds, picture books, the love of reading, and students who struggle to find their reading voice. Picture books are for everyone so get ready for your confetti moment.
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On September 25 we are telling stories for Math Storytelling Day in hopes to encourage others to tell stories through math, too. Today, let's appreciate all the ways math enhances our daily lives.
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National Research Administrator Day on September 25 recognizes the contributions made by administrators every day.
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National Tune-Up Day on September 25 reminds homeowners to prepare for the winter heating season. A heating system tune-up saves energy and reduces heating costs, plus keeps you and your family safe during the winter months.
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Each year on the last Friday in September, National Gay Men’s HIV/AIDS Awareness Day (NGMHAAD) builds awareness and increases education about this disease. The day also focuses on finding ways to eliminate the disease.
Read the full story →People born on September 25
Danish astronomer and instrument maker who invented the modern day thermometer.
Architect who is considered the "Father of the Skyscraper." He built the first skyscraper in 1884--the Insurance Building in Chicago, Illinois.
Biologist, geneticist, and embryologist who won the Nobel Prize in Physiology or Medicine in 1993 for discoveries of the roles chromosomes play in heredity.
Co-founder of Russell Stover Candies.
American tennis player who won the U.S. National Championships at the age of 17. In 1905, she became the first American woman to win the Wimbledon singles title. She was the first women and win two separate grand slams in the history of tennis.
Events that occurred on September 25 throughout history
The 12th Amendment is established, creating a procedure for electing the President and Vice President of the U.S.
Charles Follis becomes first American Black to play professional football on an integrated team. He signed a professional contract with the Shelby Blues of the Ohio League and played until injuries caused him to retire.
Henry Ford announces an 8 hour work day, 5 days a week at Ford Motor Company. Ford Ford believed that well-rested, well-paid workers with more leisure time would buy more goods.
Dr. Frank Jobe performs first ulnar collateral ligament replacement surgery on MLB player Tommy John. The successful surgery allowed Tommy John to return to pitch in the majors by 1976. John went on to win 164 more games over 14 additional seasons.
Longer-running observances that include this date.
Self-care Awareness Month
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National Suicide Prevention Month
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National Recovery Month
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Hispanic Heritage Month
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National Mushroom Month
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National Potato Month
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Self-improvement Month
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National Preparedness Month
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National Library Card Sign-up Month
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National Chicken Month
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Better Breakfast Month
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National Coupon Month
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Showing the first 12 — See all months for September.
