Conversation so far:
who issued gold coins for the first time
King Croesus of Lydia remains associated with the invention. In 546 BC, Croesus was captured by the Persians, who adopted gold as the main metal for their coins.
did ancient china use gold for coins
The only minted gold of China's pre-imperial period known is Chu Gold Block Money.
did ancient greece use gold for coins
Ancient Greek coinage contained a number of gold coins issued by the various city states.

Question: how about the romans
Self-contained rewrite: did the romans use gold for coins