A Brief History of Roman Numerals
Roman numerals are a numeral system that originated in ancient Rome and remained the dominant notation in Europe through the Middle Ages. Derived from Etruscan tally marks, they use combinations of seven Latin letters — I, V, X, L, C, D, and M — to represent numbers. Each symbol has a fixed value: I = 1, V = 5, X = 10, L = 50, C = 100, D = 500, and M = 1,000.
Unlike the positional decimal system we use today, the Roman numeral system is additive with a key subtractive rule. In an additive configuration, symbols are placed from largest to smallest and their values are summed. For example, VIII = 5 + 1 + 1 + 1 = 8. The subtractive rule, introduced in medieval times to shorten notation, allows a smaller symbol placed before a larger one to indicate subtraction: IV = 4 (5 - 1), IX = 9 (10 - 1), XL = 40, XC = 90, CD = 400, and CM = 900.
Roman numerals appear extensively in modern culture: clock faces, copyright years in film credits, Super Bowl numbering, and the naming of monarchs and popes (e.g., King Henry VIII). Understanding how to read and write them remains a valuable intellectual skill.