Which groundbreaking e-commerce innovation was first introduced by Amazon in 2005, revolutionizing online shopping expectations worldwide?

The history of retail has been transformed by technological innovations that changed how consumers shop. Some product launches revolutionized entire industries overnight, while others quietly transformed supply chains and customer experiences. This trivia question focuses on a pivotal moment in retail history that changed consumer behavior forever.

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Amazon Prime (free two-day shipping subscription service)
One-Click Purchase Patent (single-click buying without shopping carts)
Amazon Marketplace (third-party seller platform)
Amazon Product Reviews (customer rating system)