Which ancient civilization pioneered the use of 'bartering rings' with standardized weights as a pricing strategy that helped regulate market values before widespread adoption of coins?

Before modern economics and digital price tags, ancient civilizations developed sophisticated pricing strategies for their marketplaces. From the bustling agoras of Greece to the complex trading networks of Mesopotamia, discover how early merchants determined the value of their goods and maximized profits in economies that predated modern currency systems. Test your knowledge about these fascinating early pricing methods that shaped commerce for millennia!

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Ancient Egypt, where copper rings were weighed against a 'deben' standard (approximately 90 grams)
The Indus Valley Civilization, where clay rings marked with official seals served as price indicators
Ancient Greece, where bronze rings called 'kykloi' were used before the invention of the drachma
The Mayan civilization, where jade rings of standard sizes represented different values in their marketplace