Which retail innovation, introduced in the early 1900s, revolutionized shopping by allowing customers to select their own merchandise without clerk assistance for the first time?

The history of retail has been marked by revolutionary innovations that transformed how we shop. From ancient marketplaces to digital commerce, retail history reflects broader economic and social changes. This poll tests your knowledge about a pivotal moment in retail history that fundamentally changed the shopping experience and established practices we still see today. Can you identify the correct historical retail innovation?

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

Piggly Wiggly's self-service grocery store model (1916)
Macy's introduction of the department store price tag (1924)
Sears Roebuck's mail-order catalog shopping system (1893)
Marshall Field's introduction of the money-back guarantee policy (1890)