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In today's terms 1999 converted into Roman numerals is MCMXCIX.

However, in times past the Romans themselves would have probably wrote out 1999 as MDCCCCLXXXXVIIII which can be simplified to IMM (-1+2000=1999) in the same way that VIIII is simplified to IX (-1+10=9).

Today's rules governing the Roman numeral system were introduced during the Middle Ages centuries after the decline of the Roman Empire.

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15y ago

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