Salman Amin "Sal" Khan is a Bengali American educator, entrepreneur, and former hedge fund analyst. He is the founder of the Khan Academy, a free online education platform and nonprofit organization. From a small office in his home, Khan has produced more than 4,800 video lessons teaching a wide spectrum of academic subjects, mainly focusing on mathematics and the sciences.
As of June 23, 2014, the Khan Academy channel on YouTube attracted 1,797,365 subscribers and the Khan Academy videos have been viewed over 413 million times. In 2012, Time named Salman Khan in its annual list of the 100 most influential people in the world. Forbes magazine featured Khan on its cover with the story "$1 Trillion Opportunity."