@brutamerica: Nineteen years ago, Steve Jobs walked onstage in a black turtleneck and changed the world with a single device. Today, Apple closes another chapter: Tim Cook has officially stepped down as CEO this week after leading the company for 15 years, handing the reins to John Ternus. From the first iPhone keynote to a nearly $4 trillion empire, this is the story of how one product built a legacy that outlasted its era. #apple #timcook #iphone