Which ancient civilization invented the first standardized retail weights and measures system that became widely adopted by merchants across the Mediterranean for fair product trading?

Long before modern shopping malls and e-commerce, ancient civilizations developed sophisticated commercial systems. From Mesopotamian marketplace layouts to Egyptian trade networks, these early retail innovations laid the groundwork for today's commerce. This poll tests your knowledge about the product development and retail strategies of ancient merchant societies that transformed raw materials into valuable commodities and established the first consumer marketplaces.

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Phoenicians, who established the 'shekel' weight system used across their maritime trading network in 1500 BCE
Egyptians, whose 'deben' measurement system was mandated by Pharaohs for all marketplace transactions in 2500 BCE
Romans, whose 'libra' weights became the foundation for retail transactions throughout their empire in 300 BCE
Babylonians, whose 'mina' weight standard was decreed by Hammurabi for all marketplace commerce in 1750 BCE