In which decade was the first self-service grocery store (where customers could select their own items without clerk assistance) introduced in the United States?

Before department stores and shopping malls dominated retail, commerce looked very different. This poll explores a pivotal innovation in retail history that transformed how customers interacted with products and fundamentally changed the shopping experience. Test your knowledge about this revolutionary shift in retail operations that we now take for granted but was once considered radical.

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1910s (Piggly Wiggly, founded 1916)
1890s (During the Second Industrial Revolution)
1930s (As a response to Great Depression labor costs)
1950s (Post-WWII consumer boom)