Which packaging innovation from the 1960s revolutionized retail by allowing products to be easily identified through visual recognition without reading text?

Throughout history, packaging innovations have transformed how products are preserved, marketed, and consumed. Some packaging breakthroughs fundamentally altered entire industries and consumer behaviors. This trivia question explores a pivotal moment in packaging history that revolutionized retail and created new possibilities for product distribution, brand recognition, and consumer convenience. Test your knowledge of this significant retail packaging milestone!

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Universal Product Code (UPC) barcode system
The distinctive Coca-Cola bottle shape (trademarked shape packaging)
Universal packaging symbols (recycling, flammable, etc.)
Color-coded packaging and brand-specific color schemes