I know some poeple have problems with McDonald's, but it really is incredible how long its been around, since 1940. 
Really
Yes! it was opened by Richard and Maurice McDonald in San Bernardino, CA! 
In 1940?
You got it! And it actually started as a hot dog stand. Burgers weren't added to the menu until later at only ten cents per burger. 
So it started as a hot dog stand? Fine grass to grace story
International availability of McDonald's products
McDonald's Corporation () is the world's largest chain of fast food restaurants, serving around 68 million customers daily in 119 countries. McDonald's traces its origins to a 1940 restaurant in San Bernardino, California. After expanding within the United States, McDonald's became an international corporation in 1967, when it opened a location in Richmond, British Columbia, Canada. By the end of the 1970s, McDonald's restaurants existed in five of the Earth's seven continents; an African location
Monrovia was the home to the precursor to McDonald's. In 1937, Patrick McDonald opened a food stand on Huntington Drive (Route 66) near the old Monrovia Airport called "The Airdrome" (hamburgers were ten cents, and all-you-can-drink orange juice was five cents); it remained there until 1940, when he and his two sons, Maurice and Richard, moved the building east to San Bernardino to the corner of West 14th Street and 1398 North E Street, renaming it "McDonald