Since early in the game’s history, the NFL has labeled almost every Super Bowl with a Roman numeral (more on that later) to designate where each matchup falls chronologically. But the numerals are more than just a stylistic choice — they’re actually used to provide a little clarity, according to the NFL.

As the Super Bowl and aspects related to it will always hold value, it is now turn to pay heed to one of the basic characteristics of a Super Bowl.