Amazon Blog – 9.22.23
When we launched Prime in 2005, the first benefit we announced to members was free Two-Day Shipping on 1 million items, a revolutionary innovation at the time that transformed the way people shop. Over the last 18 years, we have invested and innovated in our fulfillment and transportation networks, logistics, supply chain, and software to meaningfully expand the selection and speed with which we could deliver items to customers. Today, Prime is much more expansive and much faster.
Source: An update on Prime Video