Which retail innovation, introduced in 1916, revolutionized grocery shopping by allowing customers to select their own products rather than having clerks gather items for them?

Throughout history, retail has undergone dramatic transformations that shaped how we shop today. From ancient marketplaces to digital commerce, retail innovations have reflected cultural values, technological capabilities, and consumer needs. This trivia poll explores a pivotal moment in retail history that fundamentally changed the shopping experience for millions and established practices that continue to influence modern commerce.

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Piggly Wiggly's self-service grocery store
Sears Roebuck's mail-order catalog system
A&P's discount pricing model
Woolworth's five-and-dime concept