We have 30 holidays listed for September 15.
September 15 is the 258th day of the Gregorian calendar. Napoleon’s army advanced on the Kremlin in Moscow; tanks debut during WWI. Muhammad Ali whipped Leon Spinks to become the first boxer to win the heavyweight title three times. Famous birthdays include Marco Polo and Tommy Lee Jones. Today is Batman Day.
Butterscotch Cinnamon Pie Day
Delight yourself by indulging in a decadent slice or two of butterscotch cinnamon pie.
Costa Rica Independence Day
Costa Rica celebrates its official Independence Day with much fun and joy today.
El Salvador Independence Day
Let's give a special shoutout to El Salvador Independence Day on this memorable day.
Honduras Independence Day
Christopher Columbus called the area ‘Golfo de Honduras’ — which means ‘The Gulf of the Depths.'
International Day of Democracy
When freedom is absent, life includes unimaginable challenges that are often incomprehensible.
International Dot Day
It started with a story about a little girl named Vashti, the protagonist of “The Dot.”
Martyrdom of Imam Reza
Mourners, pay respect to the revered Shia Imam on the day of the Martyrdom of Imam Reza.
National Cheese Toast Day
Celebrate the amalgamation of crunchiness and cheesiness of this dish in your mouth.
National Concussion Awareness Day
Learn and educate others on how non-visible physical injuries can also be fatal.
National Creme de Menthe Day
Get set to unwind and cool down with this soothing flavored liqueur.
National Custom Framing Day
Have you ever wondered how boring a painting or photograph would look without a frame?
National Google.com Day
Do you know what day it is today? It's National Google.com Day! Let's celebrate together.
National Linguine Day
The pesto is blended, the shrimp is boiled. Time to add the most important ingredient — linguine.
National Malcolm Day
If your name is Malcolm, then today is your day, so let’s find out more about you!
National Online Learning Day
The internet has revolutionized the learning process and offers flexible learning environment to students.
National POW/MIA Recognition Day
They’ll always be in our hearts — the gallant and beloved Americans who fought for freedom.
National Tackle Kids Cancer Day
National Tackle Kids Cancer Day is observed to raise critical funds for pediatric cancer research.
National Tradesmen Day
Let’s come together to express our gratitude to the tradesmen (and -women) of the country.
Rosh Hashanah, literally translating to ‘head of the year’, is the Jewish New Year.
World Afro Day
We have all you need to celebrate your natural coils and curls this World Afro Day!