Learn
Learn Roman numerals
Start with how the system works, then dip into whichever guide matches what brought you here.
- How Roman numerals work The seven letters, adding, the six subtraction pairs, reading and writing step by step, and why there's no zero.
- Roman numeral date tattoos A checklist before you book: date order, two-digit years, separators, layout, size and the mistakes to avoid.
- Why clocks use IIII instead of IV The theories behind the clockmaker's four, and the famous clocks that break the rule.
- Roman numerals above 3,999 Bars, brackets and the old Roman way of writing thousands, with worked examples.
- Reading years in film and TV credits A fast way to decode copyright years like MCMLXXXV before the credits roll away.
- Roman numerals in names, events and everyday life Kings and popes, the Olympics, music, chemistry, book prefaces and more.