What was the name of McDonald's first Happy Meal, launched nationally in 1979?

McDonald's first nationally launched Happy Meal in 1979 was the Circus Wagon Happy Meal.

The package was designed as a small circus wagon and contained a child-sized meal with a toy. Its format combined food, collectible play value, and distinctive packaging, creating a product aimed specifically at families with young children.

The Happy Meal had been tested in selected markets before its national United States launch. The product became an important part of McDonald's family branding because it connected the restaurant experience with toys and character promotions rather than treating the meal as only a smaller portion.

Later Happy Meals used many different themes, boxes, and licensed toys. Those later variations are sometimes incorrectly treated as the original package, but the first national design was the Circus Wagon concept.