McDonald's introduced the Happy Meal as a nationwide U.S. menu item in 1979.
The Happy Meal combined a child-sized food selection with a toy, turning the meal itself into a branded experience for families. Its packaging and colorful presentation helped McDonald's communicate directly with children while giving parents a convenient, recognizable ordering option.
The idea had been tested regionally before the national launch. The nationwide introduction established a format that could be adapted for promotions, including tie-ins with films, television characters, and other popular properties.
The Happy Meal is sometimes dated to its earlier regional experiments, but 1979 is the key year for the national U.S. launch. It became one of McDonald's most enduring pieces of family-oriented branding and remains associated with the company's children-focused marketing.