Which ancient civilization created the first standardized gold coin-based retail payment system that revolutionized Mediterranean trade in the 7th century BCE?

Before modern shopping malls and e-commerce, ancient civilizations created sophisticated retail systems that shaped economies and cultures. The earliest marketplaces weren't just places of commerce—they were centers of innovation, social interaction, and technological advancement. This trivia question explores one of the most significant retail payment systems that revolutionized trade in the ancient world and laid the foundation for modern commerce.

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Lydians of ancient Anatolia (modern Turkey)
Phoenicians of the eastern Mediterranean
Egyptians under Pharaoh Ramses II
Babylonians during King Hammurabi's reign