Which revolutionary e-commerce invention, patented in 1999, allowed customers to purchase items with just one click instead of going through a multi-step checkout process?

Many inventions and discoveries have revolutionized how we shop, but some innovations have truly transformed the retail landscape forever. This trivia tests your knowledge about a groundbreaking e-commerce invention that fundamentally changed how consumers interact with online stores, creating a seamless shopping experience that we now take for granted.

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Amazon's 1-Click Ordering (patent expired in 2017)
PayPal's Express Checkout (developed in 2001)
Apple's Touch ID Purchase (introduced in 2013)
Google's Instant Buy (launched in 2011)