U+10159 "𐅙" Greek Acrophonic Thespian One Unicode Character

U+10159 "𐅙" Greek Acrophonic Thespian One is a numeral symbol from the ancient Greek acrophonic numeral system, specifically representing the number one in the system used by the city of Thespiae. This character is part of the Ancient Greek Numbers block and was employed in inscriptions and accounting records, where the symbol derives its form from the initial letter of the word for "one" in the local dialect, reflecting a widespread practice of using the first letter of a number's name as its numerical sign. As a historical artifact of early numeral notation, it offers insight into the regional variations of Greek numerical systems before the adoption of the more common Attic or Milesian systems.