U+1018A "𐆊" Greek Zero Sign Unicode Character

U+1018A "𐆊" Greek Zero Sign is an ancient symbol used in Greek papyri and inscriptions to denote the number zero, particularly in the context of the Hellenistic period's sexagesimal numbering system, which was borrowed from Babylonian mathematics. It served as a placeholder within positional notation, allowing scribes to indicate an empty digit column in calculations or recordings of astronomical data, similar to the modern concept of zero. This character is encoded in the Unicode standard under the Ancient Greek Numbers block and represents one of the earliest known uses of a zero symbol in Western history, predating the widespread adoption of the Indian numeral zero.