The Roman numeral for four, IV, is a subtractive notation that has been used in various contexts, particularly in mathematics and timekeeping. This numeral represents the value four and is often used to denote quantities or time points (e.g., IV centuries).
The subtractive notation of IV originated from the Etruscan numeral system and was adopted by the Romans. Its use allowed for more efficient numerical representations, reducing the number of symbols required to write a given number. Understanding IV and other Roman numerals is crucial for interpreting historical documents, inscriptions, and clocks that employ this notation.
