Which retail technology innovation holds the Guinness World Record for the fastest global adoption rate in retail history?

The world of retail is full of remarkable achievements and groundbreaking innovations. Some retail technologies and product launches have been so revolutionary they've earned their place in the Guinness World Records. Test your knowledge about these extraordinary retail milestones that changed how we shop and interact with products. Do you know which retail innovation broke all records and transformed an industry overnight?

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Amazon's 1-Click ordering system (1997)
QR code payment systems (2011)
Self-checkout terminals (1992)
RFID inventory tracking (2003)