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

The evolution of retail has been shaped by technological innovations, changing consumer behaviors, and economic factors throughout history. From ancient marketplaces to modern e-commerce giants, retail has undergone dramatic transformations that reflect broader societal changes. Test your knowledge about a pivotal moment in retail history that changed how consumers shop forever.

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Piggly Wiggly's self-service grocery store model
Marshall Field's department store credit card
Sears Roebuck's mail-order catalog shopping
F.W. Woolworth's fixed-price merchandise system