Which retail innovation, introduced in 1916 by Clarence Saunders, revolutionized shopping by allowing customers to select their own merchandise without clerk assistance for the first time?

The retail landscape has transformed dramatically over centuries, with innovations that forever changed how we shop. One particular revolution in the early 20th century fundamentally altered the consumer experience and set the foundation for modern retail. Test your knowledge about this pivotal moment in retail history that influenced shopping patterns for generations to come.

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Piggly Wiggly self-service grocery store
Woolworth's five-and-dime store
Sears mail-order catalog
A&P economy grocery chain