Roman numerals, a system developed around 500 BC, use letters to represent numbers. The Kansas City Chiefs and Philadelphia Eagles will take the field for Super Bowl LIX on Sunday.

So to help avoid the confusion, here's a quick guide to Roman numerals and the Super Bowl. This season's NFL championship game — Super Bowl LVIII — is Super Bowl 58.

How to read Roman numerals. Roman numerals use the letters of the alphabet, which are then used in combination the higher the number. The symbols for numbers 1-10 are as follows: ...