Which ancient civilization implemented a systematic recycling program for pottery and glass in their marketplaces, with designated collection points and artisans specialized in repurposing broken items?

Before modern retail sustainability initiatives, ancient civilizations had their own innovative approaches to resource conservation, waste management, and sustainable commerce. Their marketplaces often employed sophisticated systems that modern retailers are only now rediscovering. Test your knowledge about how ancient societies practiced sustainable commerce and how their approaches might inspire today's retail sustainability movements.

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Ancient Egypt, where broken pottery was ground into 'grog' and mixed with clay to strengthen new ceramic vessels
The Roman Empire, where glass fragments were collected through the 'cullet' system and melted down to produce new glassware
Ancient China, where the Tang Dynasty established 'renewal workshops' adjacent to marketplaces for repairing and repurposing damaged goods
The Aztec Empire, where specialized 'pochteca' merchants collected broken items throughout the empire to be repurposed in Tenochtitlan's central market