Which retailer first introduced the revolutionary 'self-service' shopping model in 1916, allowing customers to select their own merchandise without clerk assistance?

Throughout history, retail has undergone remarkable transformations. From ancient marketplaces to modern e-commerce, innovative retailers have shaped how we buy and sell goods. This trivia question explores a pivotal retail innovation that fundamentally changed shopping behavior and set the foundation for modern retail experiences. Test your knowledge of retail history and the visionaries who transformed commerce forever!

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Piggly Wiggly (founded by Clarence Saunders)
A&P (The Great Atlantic & Pacific Tea Company)
F.W. Woolworth Company
Montgomery Ward