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

The retail landscape we know today emerged from innovations that transformed how people shop. While department stores and shopping malls seem commonplace now, they represented radical shifts in consumer culture when first introduced. This poll tests your knowledge about a pivotal moment in retail history that fundamentally changed shopping patterns worldwide and set the foundation for modern commerce as we know it.

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Piggly Wiggly self-service grocery store
Woolworth's five-and-dime store
Sears mail-order catalog
Marshall Field's department store