Which retail pioneer introduced the first self-service shopping model in 1916, fundamentally changing how consumers interacted with products and establishing the blueprint for modern supermarkets?

The history of retail has seen remarkable transformations that shaped how we shop today. From ancient marketplaces to digital storefronts, retail evolution reflects broader societal changes. This trivia question focuses on a pivotal retail innovation that revolutionized shopping habits and created the foundation for modern consumer culture. Test your knowledge about this significant historical retail development!

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Clarence Saunders with Piggly Wiggly stores
Sebastian Kresge with the S.S. Kresge Company (later K-Mart)
Frank Woolworth with F.W. Woolworth Company
John Wanamaker with Wanamaker's Department Store