What fictional world did McDonald’s launch for its characters and advertising?

McDonald’s launched McDonaldland as the fictional world for its characters and advertising.

McDonaldland appeared in McDonald’s advertising beginning in the early 1970s. It provided a shared setting for colorful figures such as Ronald McDonald, Grimace, the Hamburglar, and Mayor McCheese. The setting made the brand’s advertising resemble a continuing children’s fantasy world rather than a series of unrelated commercials.

The campaign connected the characters to restaurant products and to one another through recurring stories, locations, and visual details. It became especially prominent in television advertising and in promotional materials aimed at children.

McDonaldland is often confused with the names of individual characters or with later restaurant concepts such as McCafé. It was not a menu item or a physical theme park; it was a fictional advertising universe created to organize McDonald’s character branding.