It gave a readily portable means of exchange and store of value.
The Roman Empire did use gold coins (Aureus)
they made Persian rugs and used gold coins for starters
solidi
Solivi
Solidus, plural Solidi
The gold coins of the later Roman Empire included denominations like solidus and tremissis, featuring intricate designs and Emperor portraits, symbolizing the empire's wealth, power, and artistic achievements during its declining years.
The Roman Empire (Rome).
the persians needed many thing like food water shelter gold ivory.
Coins date back to Ancient history to today. The earliest coins date on or before 700 BC in Aegina Island or Ephesus, Lydia. The first coins were made of a mixture of gold and silver that was alloyed with silver and copper. The Persian daric was the first gold coin, but some of the most famous were the Roman and Greek coins.
Gold coins from the Aksumite Empire reveal significant insights into the economic and political power of this ancient civilization, which thrived from the 1st to 7th centuries CE in present-day Ethiopia and Eritrea. The coins often featured inscriptions and images of emperors, illustrating their authority and the empire's connections to trade networks, especially with regions like Rome and India. Additionally, the presence of gold coins indicates a sophisticated monetary system and the empire's wealth, derived from trade in goods such as ivory, spices, and textiles. Overall, these coins serve as important artifacts for understanding Aksum's influence in the ancient world.
The only British 22 carat gold coins issued in 1899 were the Sovereign and the Half-Sovereign. The Florin was a silver coin from its introduction into the currency in 1848.
Because the British empire in 1805 had a shortage of bullion (gold and silver), copper coins were still produced on a contract-basis at the Soho Mint and the price of copper had risen, making it impractical for them to issue copper coins. This eventually lead to the adoption of the gold standard (rather than the dual gold and silver standard) in 1816 and a complete recoinage of the nation's gold and silver (and later copper) coins.