Roman Numeral One Thousand C D
Part of Math Symbols
Roman Numeral One Thousand C D has no standard Windows Alt code. Copy the character directly, or use its HTML entity or Unicode value instead.
- Alt code
- None
- HTML entity
- ↀ
- Unicode
- U+2180
About this symbol
ↀ is the old Roman sign for a thousand, a circle split by a line, often printed as CIↃ. Halving it gave the sign for five hundred, which became D. John Wallis may have had it in mind when he chose ∞ for infinity, since ↀ was also used to mean a very large number.
Unicode facts
- Official name
- ROMAN NUMERAL ONE THOUSAND C D
- Type
- Letter used as a number
- Unicode block
- Number Forms
- Unicode group
- Archaic Roman numerals
- Added in
- Unicode 1.1 (1993)
Click the symbol or any value at the top of the page to copy it. See the full Math Symbols chart for related characters.