History of APIs - Amazon S3
In March, 2006 Amazon launched a new web service, something completely different from the Amazon bookseller and e-commerce site we've come to know. This was a new endeavor for Amazon: a storage web service called Amazon S3.
Amazon S3 provides a simple interface that can be used to store and retrieve any amount of data, at any time, from anywhere on the web. It gives developers access to the same highly scalable, reliable, fast, inexpensive data storage infrastructure that Amazon uses to run its own global network of websites.