This document summarizes the transformation of LinkedIn from its founding in 2002 through various milestones like reaching 1 million members in 2004, launching new products, expanding internationally, and its acquisition by Microsoft in 2016. It traces LinkedIn's growth from a small startup focused on professional networking to a large global platform with hundreds of millions of users. Key events mentioned include launching jobs and paid subscriptions in 2005, the YouTube founders starting there in 2006, going public in 2011, and launching new recruiting tools over time.