Which famous retailer first introduced the revolutionary self-service shopping model in 1916, allowing customers to select their own items rather than having clerks retrieve products from behind counters?

The history of retail has seen numerous innovations that transformed how people shop. From ancient marketplaces to modern shopping experiences, retail history reveals fascinating stories about commerce, consumer behavior, and technological advancement. This trivia question focuses on a pivotal innovation in retail history that changed customer shopping behavior forever and set the foundation for modern self-service retail models.

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Piggly Wiggly
Woolworth's
A&P (Great Atlantic & Pacific Tea Company)
Montgomery Ward