NATIONAL DOUBLE CHEESEBURGER DAY
As one of America's favorites, National Double Cheeseburger Day on September 15 recognizes a food icon savored across the U.S. We are bringing you double the taste on this delicious food holiday. #DoubleCheeseburgerDay
NATIONAL CHEESE TOAST DAY
On September 15, National Cheese Toast Day savors the cheesy goodness of this classic dish. #CheeseToastDay
NATIONAL TACKLE KIDS CANCER DAY
National Tackle Kids Cancer Day on September 15 gives you a chance to be part of the cure for pediatric cancer research. Join other Tackle Kids Cancer supporters by volunteering to rally our community and raise the needed funds for pediatric cancer research. #TackleKidsCancerDay
NATIONAL ONLINE LEARNING DAY
On September 15, National Online Learning Day recognizes the advantages and vast potential of online learning. It also honors the accomplishments of online students everywhere. #OnlineLearningDay
NATIONAL NEONATAL NURSES DAY
On September 15 each year, National Neonatal Nurses Day recognizes those who care for the most fragile patients as they take their first breaths. The celebration takes place in the middle of National Neonatal Intensive Care Awareness Month. #NeonatalNursesDay
NATIONAL LINGUINE DAY
On September 15, National Linguine Day fills the dinner menu at home and restaurants across the country. If you're anything like us, you are already planning on finding the quickest and easiest way to celebrate this tasty food holiday. #NationalLinguineDay
NATIONAL CREME DE MENTHE DAY
National Crème de Menthe Day on September 15 recognizes the creamy peppermint-flavored liqueur used in cocktails and desserts. Enjoy your favorite combination to celebrate! #CremeDeMentheDay
NATIONAL FELT HAT DAY
On September 15, tip your hat for National Felt Hat Day! The observance recognizes a stylish head protection worn throughout history. #NationalFeltHatDay
Coming on September 16, 2025
National Days
NATIONAL GUACAMOLE DAY
NATIONAL IT PROFESSIONALS DAY
NATIONAL WORKING PARENTS DAY
NATIONAL STEPFAMILY DAY
NATIONAL PLAY-DOH DAY
NATIONAL CINNAMON RAISIN BREAD DAY
MAYFLOWER DAY
NATIONAL VOTER REGISTRATION DAY
Notable Birthdays for September 15
James Fenimore Cooper (1789-1851) - Author of novel The Last of the Mohicans.
George Franklin Grant (1846-1910) - The first Black professor at Harvard who also invented an early version of the golf tee.
Edward Bouchet (1852-1918) - The first Black person to earn a Ph.D. from any American university (Yale University).
William Howard Taft (1857-1930) - The 27th President of the U.S.
Walter E. Rollins (1906-1973) - Songwriter who wrote Here Comes Peter Cottontail and Frosty the Snowman.
Penny Singleton (1908-2003) - Voice actress of Jane on the cartoon the Jetsons.
Jim Kimsey (1939-2016) - Co-founder of AOL.
Signe Toly Anderson (1941-2016) - Singer and founding member of the rock band Jefferson Airplane.
Tommy Lee Jones (1946-Still Living) - Critically-acclaimed actor with lead roles in The Fugitive, the Men in Black franchise, Coal Miner's Daughter, and Jason Bourne.
Fred Seibert (1951-Still Living) - Co-founder of MTV.
Memorable Events for September 15
1789 - The Department of Foreign Affairs is renamed the Department of State.
1917 - B.C. Forbes and Walter Drey found Forbes Magazine.
1966 - President Johnson urges gun control legislation as a response to a sniper attack at the University of Texas (Austin).
