Which retail innovation, introduced in 1916, fundamentally changed how people shopped and is considered the precursor to modern supermarkets?

The history of retail is filled with fascinating innovations that transformed how we shop. From small general stores to massive department stores and digital marketplaces, retail evolution reflects broader societal and technological changes. This poll tests your knowledge of a pivotal moment in retail history that changed shopping forever and set the foundation for modern retail operations.

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Piggly Wiggly's self-service shopping model where customers could select their own merchandise
Macy's introduction of the price tag system, eliminating the need for haggling
Sears Roebuck's mail-order catalog that brought products to rural America
Marshall Field's customer service guarantee: 'Give the lady what she wants'