TED is a US based not-for-profit enterprise devoted to the propagation of Ideas Worth Spreading. TED started out in 1984 as a conference bringing together people from three worlds: Technology, Entertainment & Design.
Started as a four-day conference in California 28 years ago, TED has grown to support those world-changing ideas with multiple initiatives. The annual TED Conference invites the worldâ€™s leading thinkers and doers to speak for 18 minutes. Their talks are then made available, free, at TED.com. TED speakers have included Bill Gates, Al Gore, Jane Goodall, Elizabeth Gilbert, Sir Richard Branson, Nandan Nilekani, Philippe Starck, Ngozi Okonjo-Iweala, Isabel Allende and former UK prime minister Gordon Brown.