In which country did they first start minting coins and what were the advantages of using coins in trade?

In which country did they first start minting coins and what were the advantages of using coins in trade? What ancient countries were part of the Persian state under Darius the First?

The very first coins began to be minted in such an ancient state called Lydia. This happened around the 7th century BC. Then the first rich king was Croesus.

Coins allowed merchants to exchange them for any product, that is, the buyer could use them to purchase any product. This eliminated the need to have your own natural product for trade.

Under Darius 1, all the countries of the Ancient East were part of his empire: Lydia, Babylon, Syria, Palestine, Media, Parthia, Bactria, Phenicia, Egypt, Thrace, Macedonia, etc.