What is the Roman numeral for 500?
Explanation
The Roman numeral for 500 is "D" because in the Roman numeral system, "D" represents the number 500. The Roman numeral system is based on a combination of letters that represent different values. In this system, "D" is used to represent 500, which is derived from the Latin word "quinquecenti" meaning five hundred. The Romans used these numerals for various purposes including counting, recording dates, and numbering different events and objects.