When was the first commercial barcode scanned at a retail store?

The invention of the barcode revolutionized retail inventory management, making it one of the most significant technological advancements in modern commerce. This ubiquitous pattern of lines has transformed how businesses track products and manage inventory. Test your knowledge about this groundbreaking retail technology that changed shopping forever!

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1974, on a pack of Wrigley's chewing gum at Marsh Supermarket in Ohio
1969, on a Campbell's soup can at Kroger in Cincinnati
1981, on a Coca-Cola bottle at Walmart in Arkansas
1977, on a box of Kellogg's cereal at Safeway in California