1900 in Roman Numerals
1900 is MCM, the turn of the twentieth century in just two glyphs. It opens the whole nineteen-hundreds band: every year from here to 1999 starts with MCM.
How MCM is formed
M + CM = 1000 + 900 = 1900.
Where MCM is used
A year numeral turns up in different places from a bare number. These are the four that send people looking for MCM.
- Date tattoos and engravings. A year-only piece is just MCM, and a full date stacks the day and month above it. MCM is 3 characters long, which matters more than people expect: it sets how wide the bottom line of a stacked date will sit.
- Copyright lines in credits. Film and television end credits have long set the copyright year in Roman numerals, so a production from 1900 carries MCM on its end card. If you are reading a numeral off a title sequence rather than writing one, this is usually the one you have found.
- Cornerstones and dedications. Buildings, monuments and foundation stones carry their year in numerals, which is why MCM turns up carved rather than typed. Every year between 1900 and 1999 opens with MCM, so on a datestone it is the letters after MCM that tell you which year you are actually looking at.
- Anniversaries. In 2026, a date from 1900 is 126 years old, so MCM is the numeral for a 126th anniversary this year. Wedding and birth years are the two most common reasons to want MCM written correctly.
1900 in history
1900 opens the twentieth century, and in Roman numerals it is the short, clean MCM that begins every year up to 1999.
Convert another year or number
1900 is written MCM in Roman numerals.
Frequently asked questions
How do you write the year 1900 in Roman numerals?
The year 1900 is written MCM. Reading left to right that is M (1000) + CM (900), added together to reach 1900.
What happened in 1900?
1900 opens the twentieth century, and in Roman numerals it is the short, clean MCM that begins every year up to 1999. Written as a Roman numeral, 1900 is MCM, which is the form you will see it carved or inked.
Why is 1900 just MCM?
1900 lands exactly on a century mark, so its numeral is the century band MCM with nothing left to add. Every other year from 1900 to 1999 is MCM plus the letters for whatever is left over.
How do you write 1900 for a tattoo?
The correct form is MCM. For a vertical piece the same letters are simply stacked, and for a full date the day and month sit above the year on their own lines. Keeping the spelling standard means a tattoo artist can copy it directly.
Years people look up next
The decade anchors either side of 1900, its immediate neighbours, and the quarter and half century marks that anniversaries land on.