section_path: Government/Coinage
section_name: Coinage
paragraph_text: Coinage
  
  The Persian daric was the first gold coin which, along with a similar silver coin, the siglos, introduced the bimetallic monetary standard of the Achaemenids, which has continued until today. This was accomplished by Darius I, who reinforced the empire and expanded Persepolis as a ceremonial capital; he revolutionized the economy by placing it on the silver and gold coinage.