Kakawitin sawatara ring warsa 3500 SM, token tanah legit saka kidik kagentosin olih pralambang angka sané kacetak sareng stylus bunder ring sisi sané malianan ring gumpelan tanah legit (dumun genah anggén token) sané nglantur katunu.
Beginning about 3500 BC, clay tokens were gradually replaced by number signs impressed with a round stylus at different angles in clay tablets (originally containers for tokens) which were then baked.