Which invention, first implemented in a Tennessee grocery store in 1937, revolutionized retail by introducing self-service shopping and is considered the precursor to modern supermarkets?

The retail landscape has transformed dramatically over the centuries, with certain pivotal inventions forever changing how we shop. Some innovations were so revolutionary that they fundamentally altered consumer behavior and set the foundation for modern retail. Test your knowledge about a groundbreaking retail technology that transformed the shopping experience and paved the way for self-service retail as we know it today.

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• The shopping cart, invented by Sylvan Goldman
• The barcode scanner, invented by Norman Joseph Woodland
• The self-service grocery store concept, pioneered by Clarence Saunders with Piggly Wiggly
• The cash register, invented by James Ritty

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