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

The history of retail is filled with innovations that transformed how we shop. From humble marketplaces to sophisticated department stores, retail history reflects broader economic and social changes throughout human civilization. This trivia question explores a pivotal moment in retail history that fundamentally changed the shopping experience and set the foundation for modern retail concepts we take for granted today.

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

Piggly Wiggly's self-service grocery store
Marshall Field's escalator system
Sears Roebuck's mail-order catalog
F.W. Woolworth's five-and-dime store concept