Which retail innovation was pioneered by Amazon in 1999 that fundamentally changed online shopping and is now an industry standard?

Test your knowledge about the pivotal moments in e-commerce history that transformed retail forever. While many companies have contributed to the digital shopping landscape we know today, certain innovations and milestones stand out as truly revolutionary. This trivia question explores one such milestone that changed how consumers interact with online retail platforms. Can you identify the correct historical fact?

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1-Click purchasing technology
Customer review systems
Prime subscription model
Product recommendation algorithms