In what year was the barcode first used commercially in a retail store?

The retail landscape has been transformed by numerous technological innovations throughout history. One particular invention revolutionized the checkout process and inventory management, becoming ubiquitous in stores worldwide. Test your knowledge about this groundbreaking retail technology that emerged from humble beginnings to become an essential component of modern commerce. Can you identify when this game-changing retail innovation first appeared in stores?

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1974 - When a pack of Wrigley's chewing gum was scanned at Marsh Supermarket in Ohio
1952 - When Norman Joseph Woodland patented the first barcode system
1969 - When IBM developed the Universal Product Code (UPC) system
1983 - When Walmart mandated barcodes for all its suppliers