1929 in Roman Numerals
1929 is MCMXXIX, the year of the Wall Street Crash that opened the Great Depression. MCM covers nineteen hundred, then XXIX adds the twenty-nine: XX for twenty, IX for nine.
How MCMXXIX is formed
M + CM + X + X + IX = 1000 + 900 + 10 + 10 + 9 = 1929.
Where MCMXXIX is used
A year numeral turns up in different places from a bare number. These are the four that send people looking for MCMXXIX.
- Date tattoos and engravings. A year-only piece is just MCMXXIX, and a full date stacks the day and month above it. MCMXXIX is 7 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 1929 carries MCMXXIX 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 MCMXXIX 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 1929 is 97 years old, so MCMXXIX is the numeral for a 97th anniversary this year. Wedding and birth years are the two most common reasons to want MCMXXIX written correctly.
1929 in history
1929 is the year of the Wall Street Crash that opened the Great Depression.
Convert another year or number
1929 is written MCMXXIX in Roman numerals.
Frequently asked questions
How do you write the year 1929 in Roman numerals?
The year 1929 is written MCMXXIX. Reading left to right that is M (1000) + CM (900) + X (10) + X (10) + IX (9), added together to reach 1929.
What happened in 1929?
1929 is the year of the Wall Street Crash that opened the Great Depression. Written as a Roman numeral, 1929 is MCMXXIX, which is the form you will see it carved or inked.
Why does MCMXXIX start with MCM?
MCM is the numeral for 1900, and every year from 1900 to 1999 opens with it. The letters after it, XXIX, carry the remaining 29.
Is MCMXXIX the same as 1929 on a clock?
No. Clock faces only run to XII, so a year never appears on a dial. MCMXXIX belongs on dates: credits, cornerstones, engravings and tattoos. A numeral read off a watch face is an hour between I and XII, not a year.
Years people look up next
The decade anchors either side of 1929, its immediate neighbours, and the quarter and half century marks that anniversaries land on.