The Super Bowl.
It has a ring to it, doesn't it? The name, coined by then Kansas City Chiefs owner Lamar Hunt and originally intended as a joke, now carries such cultural significance and cache that it's hard to imagine a time when the game didn't exist.
But just 45 short years ago, it didn't. Now, of course, references to the Super Bowl are ubiquitous, and more people across the country probably know about when it is and who's playing in it than know who the Vice President is (it's Joe Biden, for those of you wondering).
But why? Why has this pro football championship game become the 800-pound gorilla that it is?
Here are a few guesses.