1989 in Roman numerals at a glance
- Roman numeral
- MCMLXXXIX
- Lowercase
- mcmlxxxix
- Letters
- 9
- Parts
- M · CM · L · X · X · X · IX
- Subtractive pairs
- CM, IX
- Read aloud
- nineteen eighty-nine
- Leap year?
- No
How MCMLXXXIX is built
Roman numerals are written one decimal place at a time, from the largest place to the smallest. Converting each digit of 1989 separately and joining the pieces gives MCMLXXXIX:
| Place | Digit | Value | Numeral |
|---|---|---|---|
| Thousands | 1 | 1,000 | M |
| Hundreds | 9 | 900 | CM |
| Tens | 8 | 80 | LXXX |
| Ones | 9 | 9 | IX |
Reading it back, left to right:
- M = 1,000 → running total 1,000
- CM = 900 (M minus C) → running total 1,900
- L = 50 → running total 1,950
- X = 10 → running total 1,960
- X = 10 → running total 1,970
- X = 10 → running total 1,980
- IX = 9 (X minus I) → running total 1,989
Why MCMLXXXIX has 9 letters
Every year from 1900 to 1999 begins with MCM (1,900); the rest of MCMLXXXIX after MCM — LXXXIX — spells out 89. Of the 201 years from 1900 to 2100, 6 have a longer numeral and 179 a shorter one.
The rules MCMLXXXIX follows
- Largest to smallest. MCMLXXXIX uses the symbols M, C, L, X and I (9 characters in all), and the values never increase from left to right except inside a subtractive pair.
- Subtraction. CM (900) and IX (9) are subtractive pairs: a smaller symbol in front of a larger one is taken away from it. Only six pairs are allowed — IV, IX, XL, XC, CD and CM — and MCMLXXXIX uses two of them.
- Repetition. XXX repeats X three times. I, X, C and M may repeat up to three times in a row; V, L and D never repeat.
Common mistakes when writing 1989
- MDCCCCLXXXIX — wrong because standard numerals never repeat a symbol four times; 900 is written CM. The correct form is MCMLXXXIX.
- MCMLXXXVIIII — wrong because standard numerals never repeat a symbol four times; 9 is written IX. The correct form is MCMLXXXIX.
The year 1989 in Roman numerals: where it appears
- Film and TV credits. Copyright lines at the end of films and TV programs of the period commonly gave the year in numerals — a 1989 production might end with “Copyright MCMLXXXIX.”
- Championship numbering. The pro football championship played in early 1989 was game XXIII (23), since the series began with game I in January 1967.
- On a calendar. 1989 was not a leap year (365 days), and January 1 fell on a Sunday. A full date such as July 4, 1989 is often written VII · IV · MCMLXXXIX.
To turn a complete birth date or wedding date into numerals — with dots, dashes or spaces in US or day-first order — use the Roman numeral date converter.
Years around 1989 in Roman numerals
| Year | Roman numeral | Letters |
|---|---|---|
| 1984 | MCMLXXXIV | 9 |
| 1985 | MCMLXXXV | 8 |
| 1986 | MCMLXXXVI | 9 |
| 1987 | MCMLXXXVII | 10 |
| 1988 | MCMLXXXVIII | 11 |
| 1989 | MCMLXXXIX | 9 |
| 1990 | MCMXC | 5 |
| 1991 | MCMXCI | 6 |
| 1992 | MCMXCII | 7 |
| 1993 | MCMXCIII | 8 |
| 1994 | MCMXCIV | 7 |
Frequently asked questions
How do you write 1989 in Roman numerals?
1989 is written MCMLXXXIX. Break it into M (1000), CM (900), L (50), X (10), X (10), X (10), IX (9) and add the parts: 1000 + 900 + 50 + 10 + 10 + 10 + 9 = 1989.
Is MDCCCCLXXXIX a correct way to write 1989?
No. MDCCCCLXXXIX is wrong because standard numerals never repeat a symbol four times; 900 is written CM. The standard numeral for 1989 is MCMLXXXIX.
How do you say MCMLXXXIX?
Read the value, not the letters: MCMLXXXIX is the year 1989, said “nineteen eighty-nine.” Spelling out the letters one by one is only useful when checking a carving or engraving.
What year comes after MCMLXXXIX?
1990, written MCMXC. The year before, 1988, is MCMLXXXVIII.