Which retail innovation, introduced in 1916, fundamentally changed shopping by allowing customers to select their own merchandise without clerk assistance for the first time?

Throughout history, retail has evolved dramatically from simple bartering systems to complex digital marketplaces. The foundations of modern retail were established during key innovations in the 19th and early 20th centuries, revolutionizing how products were sold and consumed. This poll tests your knowledge about a pivotal moment in retail history that changed shopping forever and established practices we still see today.

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• Piggly Wiggly's self-service grocery store model
• Woolworth's five-and-dime store concept
• Sears Roebuck's mail-order catalog system
• Marshall Field's department store fixed pricing policy

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