Which ancient civilization first implemented a standardized retail pricing system with fixed, marked prices instead of the traditional haggling method?

Before modern retail strategies, ancient civilizations developed sophisticated commercial systems. From Mesopotamian tokens that tracked inventory to Roman advertising inscriptions, these early retail innovations laid groundwork for today's business practices. This trivia explores a fascinating aspect of ancient retail strategy that revolutionized commerce and consumer experience in the classical world.

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Roman Empire under Emperor Diocletian
Ancient Egypt during the New Kingdom period
Han Dynasty China
Phoenician merchant network