1921 in Roman numerals

The number 1921 is written in Roman numerals like this: MCMXXI

MCMXXI = 1921

How to write 1921 in Roman numerals

Split the number by place value and write each part in Roman numerals:

• 1000 = M
• 900 = CM (1000 − 100)
• 20 = XX
• 1 = I

Put the parts together: M + CM + XX + I = MCMXXI.

When a smaller symbol comes before a larger one, it is subtracted.

As a year, 1921 is written MCMXXI. You often see dates like this in film credits, on buildings and on monuments.

Going the other way? See the Roman numeral MCMXXI.

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1920 in Roman numerals: MCMXX

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1922 in Roman numerals: MCMXXII

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