National Double Cheeseburger Day is a holiday that celebrates one of the most iconic American food items: the double-stacked cheeseburger. This holiday is observed annually on September 15th and is a great day to purchase a double cheeseburger at a local sit-down or fast-food restaurant, or to take the time to make your own version of a double cheeseburger. After all, from what we understand, these burgers are twice the fun of ordinary cheeseburgers.

The History of the Double Cheeseburger

The history of National Double Cheeseburger Day may have eluded us, but the invention of the double cheeseburger hasn’t. The first double cheeseburger was allegedly created in 1937 by Bob’s Big Boy. However, that double cheeseburger also had another bun in the middle of it, so it was closer to the burger from McDonald’s called a Big Mac than it is to a modern-day cheeseburger. Regardless, they were still the first restaurant to double the meat and cheese on a burger.

While Bob’s Big Boy might have invented the double cheeseburger, they didn’t invent the cheeseburger or even the hamburger. No one knows who invented the cheeseburger, as there are several competing origin stories for this food item. According to popular sources, the first hamburger was invented by Louis Lassen in 1900. He was a Danish immigrant and owner of Louis’ Lunch in New Haven, Connecticut. This food was likely first created in Germany during the 18th and 19th centuries.

Cheesy Facts About Hamburgers, Cheeseburgers & Double Cheeseburgers

Want the skinny on all things burger-related? If you do, then we’ve assembled some interesting facts about them. We’ve laid out the facts below so everyone celebrating this holiday will have some burger trivia to share with their friends and family.

• Denver, New Haven, and Pasadena are U.S. cities that all claim to have invented the cheeseburger.
• Otto Kuase is said to have originally invented the burger in Hamburg, Germany.
• No matter who invented the hamburger, it was the 1904 St. Louis World’s Fair that popularized it nationwide.
• Between 1971 and 1985, Mayor McCheese was the mayor of McDonaldland.
• Approximately 70% of Americans prefer American cheese on their cheeseburgers.
• September 18th is National Cheeseburger Day.
• In the U.S., over 50 billion hamburgers or cheeseburgers are eaten every year.
• The world’s largest burger was made in 1982. It weighed almost 3,600 pounds and was big enough to feed 10,000 people.
• In 1921, White Castle opened, and they sold 5-cent square hamburgers that are now known as sliders.
• On April 15, 1955, Ray Kroc opened the first McDonald’s restaurant east of the Mississippi River. It was located in Des Plaines, Illinois.

Observing National Double Cheeseburger Day

Anyone who wants to observe National Double Cheeseburger Day can do so by making their own double cheeseburger or buying one from their local eatery. Once you have the perfect double cheeseburger made to your exact specifications, you should then share your burger via social media using the hashtag #NationalDoubleCheeseburgerDay to spread the word about this holiday.