- National Cheeseburger Day is celebrated annually on September 18, though the exact origins of the cheeseburger remain a subject of debate.
- Many fast-food restaurants across the United States are offering special deals, discounts, and freebies to mark the occasion.
- McDonald's is providing $0.50 Double Cheeseburgers via its app, while Burger King offers a free Bacon Cheeseburger to Royal Perks members with a $1 purchase.
- Dairy Queen is giving away a free Double Original Cheeseburger Stackburger with a $1 purchase, and Applebee's has an $8.99 meal deal for dine-in or app orders.
- Other participating chains include Wendy's, Sonic, White Castle, and Buffalo Wild Wings, with promotions ranging from discounted items to buy-one-get-one-free offers.
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