Which retail innovation, introduced in 1916, pioneered the self-service shopping concept where customers could select their own products without clerk assistance, revolutionizing store layouts and customer experience?

The retail landscape has been shaped by numerous innovations throughout history, revolutionizing how consumers interact with products and services. One particularly transformative concept dramatically changed shopping behaviors and store layouts forever. Test your knowledge about this pivotal retail innovation that fundamentally altered the shopping experience and laid the groundwork for modern retail as we know it today.

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Piggly Wiggly stores by Clarence Saunders
A&P Economy Stores by George Huntington Hartford
King Kullen by Michael Cullen
Woolworth's Five-and-Dime by Frank Woolworth