McDonald's introduced the Happy Meal nationally in 1979 as a children's meal packaged with a toy.
The concept combined a small portion of food with a collectible item, making the meal part of McDonald's family-oriented branding. The first national promotion used a circus theme, following regional tests and earlier children's-meal ideas.
The Happy Meal was not simply a smaller adult meal. Its distinctive box, toy partnerships, and rotating themes became recognizable parts of McDonald's visual identity. The exact food choices have changed by country and over time, so menus are not identical worldwide.
A common mix-up is dating the Happy Meal to an earlier test or to a later international launch. The widely cited national United States introduction occurred in 1979, while individual markets later adapted the format.