National French Fries Day is observed worldwide every second Friday of July. This day celebrates the popular dish of French fries, which are elongated pieces of deep-fried potato, typically served hot and often salted. The origin of French fries is debated, with both Belgium and France claiming to have invented them. President Thomas Jefferson is credited with introducing the dish to America in 1802, serving "potatoes served in the French manner" at a White House dinner. The first printed reference to "French fried potatoes" appeared in 1856. Commonly enjoyed as a snack or side dish, French fries can be accompanied by various sauces such as ketchup, mayonnaise, and ranch dressing. To celebrate, people may visit their favorite restaurants or choose to make fries at home, although it's advised to consume them in moderation due to health considerations.