Roman numerals are, by modern standards, a bit unusual. By virtue of using designations for both 5 and 10, and not scaling well to higher numbers, they’ve fallen out of favor outside of some … ...

Thanks for your informative piece on the Roman numerals on the Tomb of the Unknowns. Now can you explain to me why the 4 on my watch is denominated by IIII instead of IV, a fact I had not noticed ...

Why do some analog clocks with Roman numerals have '4' as 'IV,' while others have 'IIII'? This is one of those questions where no one seems to have a definitive answer, and probably no one ever will.