Which retail innovation, introduced by Clarence Saunders in 1916, revolutionized shopping by allowing customers to select their own merchandise rather than requesting items from clerks?

The history of retail has seen dramatic transformations that have shaped our shopping experiences. From humble general stores to massive department stores to online marketplaces, retail innovations have reflected broader societal and technological changes. This trivia question explores a pivotal moment in retail history that fundamentally changed how consumers interact with products. Test your knowledge of retail history and the innovations that created today's shopping landscape!

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Piggly Wiggly self-service grocery stores
Sears mail-order catalog distribution centers
A&P economy grocery pricing model
Marshall Field's department store window displays