Which retail innovation, first implemented in 1916, fundamentally transformed the customer shopping experience by allowing shoppers to select their own merchandise without clerk assistance?

Step back in time to explore how retail shopping transformed in the 19th and 20th centuries. Today's consumer experience has deep historical roots in innovations that revolutionized how people shop. This trivia poll tests your knowledge about a pivotal moment in retail history that fundamentally changed the customer experience and set the foundation for modern shopping habits. Do you know which retail innovation changed shopping forever?

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Piggly Wiggly's self-service grocery store model
Marshall Field's department store customer service guarantee
Sears Roebuck's mail-order catalog system
F.W. Woolworth's five-and-dime fixed pricing structure