French fries originated in Belgium and France, with their crispy allure quickly gaining popularity.

They were introduced to the U.S. in the early 20th century by European immigrants.

Fast food chains adopted them, making fries a standard side dish in American fast food culture.

Their affordability and ease of preparation contributed to their widespread appeal.

Innovations like the frozen fry helped French fries become a convenient, ubiquitous option.

Marketing strategies and menu standardization solidified their status in fast food.