U+10145 "𐅅" Greek Acrophonic Attic Five Hundred Unicode Character

U+10145 "𐅅" Greek Acrophonic Attic Five Hundred is a numeral symbol from the ancient Athenian system of acrophonic numerals, where signs were derived from the first letter of the Greek word for the value. This particular character represents the number 500, originating from the letter "Η" (eta), the initial of the word "πεντακόσιοι" (pentakósioi, meaning five hundred). It was historically used on inscriptions, financial records, and official decrees in ancient Athens, forming part of a larger set of signs that preceded the later alphabetic Greek numerals. As a rare and historic symbol, it is encoded in the Ancient Greek Numbers block of the Unicode standard, preserving a tangible link to classical Greek accounting and epigraphy.