mcdonald's hamburger, fries, and drink on a tray
McDonald's hamburgers are famous, but you might not know these interesting facts about them.
  • The first McDonald's restaurant wasn't primarily a burger restaurant.
  • The first "Big Mac" sold for 45 cents and was named by a 21-year-old secretary.
  • The first Happy Meal was called a "Menu Ronald."

The first McDonald's franchise opened in 1955, and the chain has since become one of the most iconic food brands in history.