National days, ongoing national weeks and months, and global observances for September 18, 2027. Plus historical events and birthdays.
September 18, 2027 celebrates National Cheeseburger Day, plus 8 more. National Cheeseburger Day on September 18 honors America's favorite sandwich with a slice of cheese. Let's celebrate this delicious food holiday together!
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Break out into a twirl or two-step on National Dance Day on the third Saturday in September. The day focuses on raising awareness about dance. It also encourages Americans to embrace dance as a fun and positive way to maintain good health and combat obesity.
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On the third Saturday in September, National CleanUp Day encourages all of us to take action to make the entire country a better place to live.
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National HIV/AIDS and Aging Awareness Day on September 18 highlights the number of people living longer with HIV/AIDS.
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On the third Saturday in September, Responsible Dog Ownership Day reminds pet owners to make a promise to your furever friend.
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On the third Saturday in September, National Gymnastics Day focuses on a sport the Greeks developed in the 5th century B.C. Yes! Gymnastics is that old!
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National Puppy Mill Awareness Day on the third Saturday in September encourages those looking for a new dog, to adopt, not shop.
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We celebrate Boys' and Girls' Club Day for Kids during the third Saturday in September to get involved in meaningful activities and enjoy the wonderment of childhood activities.
Read the full story →People born on September 18
A Continental Congressman from Delaware, President of Delaware, and a member of the Federalist Party who signed the Declaration of Independence.
Known as "Madman," Mantz was an auto racer and winner of the first 500-mile race in NASCAR history.
Teen idol and singer of Venus, Why, and Beauty School Dropout.
Neurosurgeon who lead a team surgeons in the first-known successful separation of conjoined twins (back of the head).
Actor fondly remembered for his award-winning role as of Tony Soprano in The Sopranos.
Events that occurred on September 18 throughout history
John Harris builds the first spinet piano.
President George Washington lays the first cornerstone of the U.S. Capitol. The President and Masonic leaders used corn, wine, and oil to consecrate the stone to perform Masonic rituals to mark the landmark event.
Charles Lewis Tiffany and Teddy Young open Tiffany and Young. The store sold stationery, gifts, and fancy goods. The company later changed their name to Tiffany and Company.
Congress passed the Fugitive Slave Law, requiring slaves be returned to their owners. Anyone who helped a runaway or blocked an arrest faced a fine of up to $500
The New-York Daily Times newspaper is published for the first time. The four page paper sold for one-cent. The paper is now known as The New York Times.
Spiritualist Daniel Palmer gives the first chiropractic adjustment as an alternative medical treatment.
The Columbia Broadcasting System (CBS) goes on the air. The program was a live musical presentation of The King’s Henchmen.
The Central Intelligence Agency (CIA) officially comes into existence, eight months after President Harry S. Truman established the office.
The Addams Family premiers. The sitcom ran 64 episodes for two seasons between 1964 and 1966.
Joe Kittinger completes the first solo balloon crossing of the Atlantic, traveling 3,543 miles across over 86 hours.
Longer-running observances that include this date.
National Construction Appreciation Week
Week
National Security Officer Appreciation Week
Week
National Rehabilitation Awareness Week
Week
National Indoor Plant Week
Week
National Surgical Technologists Week
Week
National Farm Animals Awareness Week
Week
National Farm Safety And Health Week
Week
National Eczema Week
Week
Self-care Awareness Month
Month
National Suicide Prevention Month
Month
National Recovery Month
Month
Hispanic Heritage Month
Month
National Mushroom Month
Month
National Potato Month
Month
Self-improvement Month
Month
National Preparedness Month
Month
National Library Card Sign-up Month
Month
National Chicken Month
Month
Better Breakfast Month
Month
National Coupon Month
Month
Showing the first 12 — See all months for September.
