QUIZ: It's National Cheeseburger Day! How well do you know your cheeseburger?
WASHINGTON (Sinclair Broadcast Group) -- National Cheeseburger Day has arrived!
The unofficial holiday celebrates the birth and creation of one of America's favorite delicacies. How well do you know your cheeseburgers?
Take this quiz and test your knowledge on fun facts and history involving the All-American sandwich. Share your quiz score on social media with your friends after you've finished taking it.