Amazon was founded in 1994 by Jeff Bezos and launched online in 1995 originally as an online bookstore called Cadabra.com. It has since expanded into many other product categories and become the largest online retailer in the US. Headquartered in Seattle, Amazon also has operations in other countries through separate websites and offers international shipping. Amazon sells both products directly as well as acting as a marketplace for third-party sellers. It is a leader in e-commerce and one of the most visited retail websites worldwide.