521 in Roman Numerals
Year breakdown
500 + 20 + 1
D + XX + I = DXXI
| Token | Value | Note |
|---|---|---|
| D | 500 | D = 500 |
| X | 10 | X = 10 |
| X | 10 | X = 10 |
| I | 1 | I = 1 |
Place values
- Hundreds: 500 → D
- Tens: 20 → XX
- Ones: 1 → I
521 belongs to the 6th century (century ordinal 6, VI).
Previous / next year
Where Roman numeral years appear
- Film and television end credits often show the copyright year in Roman numerals.
- Cornerstones and building inscriptions sometimes record a dedication year in Roman numerals.
- Book title pages and colophons may use Roman numerals for publication years.
- Commemorative plaques and memorial dates frequently encode a year in Roman numerals.
- Clocks mark hours rather than calendar years, but year inscriptions appear on many public monuments.
- Personal projects—tattoos, invitations, and anniversaries—commonly use Roman numeral years.
This page does not claim a specific film, building, or product used 521 unless verified elsewhere.