U+10141 "𐅁" Greek Acrophonic Attic One Half Unicode Character

U+10141 "𐅁" Greek Acrophonic Attic One Half is a numeral symbol from the ancient Greek acrophonic system of numeration, specifically used in Attica (the region around Athens) to represent the fraction one half. This character originates from a system where numbers were denoted by the first letter of their name in Greek; for example, the symbol for one half is derived from the initial letter of the word for "half," which is *ἡμίετον* (hēmíeton) or a similar term, and it was employed in inscriptions and financial records alongside other acrophonic numerals. It belongs to the Unicode block Ancient Greek Numbers and serves as a historical artifact of early accounting and mathematical notation, distinct from modern Arabic or Roman numerals. The character is encoded in the Supplementary Multilingual Plane and requires appropriate font support for proper display, offering a glimpse into the numerical practices of classical Athens.

General Properties

Code Point	U+10141
Version Added	4.1
Name	Greek Acrophonic Attic One Half
Block	Ancient Greek Numbers
General Category	Letter Number
Canonical Combining Class	Not Reordered
Bidirectional Class	Other Neutral

Encodings

HTML Decimal Encoding	𐅁
HTML Hex Encoding	𐅁
UTF-8 Encoding	0xF0 0x90 0x85 0x81
UTF-16 Encoding	0xD800 0xDD41
UTF-32 Encoding	0x00010141
C/C++/Java Escape	\ud800\udd41

Unicode Properties

NFC Quick Check	Yes
NFD Quick Check	Yes
NFKC Quick Check	Yes
NFKD Quick Check	Yes
Numeric Type	Numeric
Numeric Value	1/2
Line Break	Alphabetic
Script	Greek
Script Extensions	Greek
Indic Syllabic Category	Other
ID Start	Yes
XID Start	Yes
ID Continue	Yes
XID Continue	Yes
Alphabetic	Yes
Vertical Orientation	Rotated
Grapheme Base	Yes
Grapheme Cluster Break	Other
Word Break	Alphabetic letter
Sentence Break	OLetter