In which year was the world's first self-service grocery store, Piggly Wiggly, opened by Clarence Saunders, introducing the revolutionary concept where customers could select their own merchandise?

The retail landscape was forever changed with the invention of self-service shopping. Before this innovation, customers had to ask clerks behind counters to retrieve products for them. This revolutionary concept dramatically altered how we shop, empowering consumers and transforming store layouts. Test your knowledge of this pivotal retail innovation that shaped modern shopping experiences worldwide!

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1916
1934
1905
1923