CultusIn 2011, Stanford University offered 3 online courses, which anyone in the world could enroll in and take without having to pay anything.
These three courses had enrollments of around 350,000 students, which is making them one of the largest experiments in the online education ever.
Ever since the beginning of 2012, the effort has transitioned into Coursera, a social entrepreneurship company whose mission is to make high-quality education accessible to everyone for free.
