In 546 BC , Croesus was captured by the Persians , who adopted gold as the main metal for their coins .
The name of king Croesus of Lydia remains associated with the invention ( although the Parian Chronicle mentions Pheidon of Argos as a contender ) .
In 546 BC , king was captured by the Persians , who adopted gold as the main metal for their coins .
The name of king Croesus of Lydia remains associated with the invention ( although the Parian Chronicle mentions Pheidon of Argos as a contender ) .