U+2180 "ↀ" Roman Numeral One Thousand C D Unicode Character

Unicode Version 17.0

U+2180 "ↀ" Roman Numeral One Thousand C D is a historical numeric symbol representing the value of one thousand in the Roman numeral system, specifically depicted as an overlay or ligature of the letters C, I, and sometimes D to denote 1,000 (where "ↀ" evolved from a simpler form of encircling or modifying the standard "M" or other numerals). It is part of the Unicode block "Number Forms" and was included to support ancient or medieval epigraphic and manuscript texts where this variant form of the numeral was used, distinct from the more common "M" for 1000. This character serves as a typographic and historical reference, preserving an alternative notation that appears in certain old inscriptions and documents, and is encoded primarily for compatibility and scholarly use rather than for modern everyday writing.

General Properties

Code Point U+2180
Version Added 1.1
Name Roman Numeral One Thousand C D
Block Number Forms
General Category Letter Number
Canonical Combining Class Not Reordered
Bidirectional Class Left To Right

Encodings

HTML Decimal Encoding ↀ
HTML Hex Encoding ↀ
UTF-8 Encoding 0xE2 0x86 0x80
UTF-16 Encoding 0x2180
UTF-32 Encoding 0x00002180
C/C++/Java Escape \u2180

Unicode Properties

NFC Quick Check Yes
NFD Quick Check Yes
NFKC Quick Check Yes
NFKD Quick Check Yes
Numeric Type Numeric
Numeric Value 1000
Line Break Alphabetic
Script Latin
Script Extensions Latin
Indic Syllabic Category Other
ID Start Yes
XID Start Yes
ID Continue Yes
XID Continue Yes
Alphabetic Yes
Vertical Orientation Upright
Grapheme Base Yes
Grapheme Cluster Break Other
Word Break Alphabetic letter
Sentence Break OLetter