Vintage photos show what it was like to eat at McDonald's in the 1970s

Fuente: Business Insider

Product shot of a McDonald's Big Mac hamburger in 1977. Henry Groskinsky/The LIFE Images Collection/Getty ImagesThe first McDonald's franchise opened in Des Plaines, Illinois, on April 15, 1955. By the 1970s, McDonald's had grown into a popular fast-food establishment.