The Golden Arches became the central design of McDonald's 1968 “M” restaurant sign.
McDonald's early buildings often used two yellow arches as architectural features visible from the road. In the 1960s, the company transformed those structures into a graphic emblem. The resulting M-shaped symbol could identify a restaurant at a distance and work consistently across signs, packaging, and advertising.
The 1968 sign is associated with the modern corporate identity because it placed the arches in a standardized logo treatment. The arches were not merely decorative roof parts by then; they had become a compact visual shorthand for the McDonald's name.
The term “Golden Arches” can refer both to the physical architectural forms and to the logo. That dual use causes some date confusion: the buildings predate the corporate emblem, while the logo evolved through several lettering and color treatments after its adoption.