TED was conceived by Richard Saul Wurman, who co-founded it with Harry Marks in February 1984 as a conference; it has been held annually since 1990. TED's early emphasis was on technology and design, consistent with its Silicon Valley origins. It has since broadened its perspective to include talks on many scientific, cultural, political, humanitarian and academic topics. It is curated by Chris Anderson, a British-American businessman, through the non-profit TED Foundation since July 1, 2019 (originally by the non-profit Sapling Foundation).
The main TED conference is held annually in Vancouver, British Columbia, Canada at the Vancouver Convention Centre. TED events are also held throughout North America and in Europe, Asia, and Africa, offering live streaming of the talks. They address a wide range of topics within the research and practice of science and culture, often through storytelling. The speakers are given a maximum of 18 minutes to present their ideas in the most innovative and engaging ways they can.
Since June 2006, TED Talks have been offered for free viewing online, under an Attribution-NonCommercial-NoDerivatives Creative Commons license, through TED.com. As of December 2020 over 3,500 TED Talks are freely available on the website.
TED-Ed is a YouTube channel from Ted that creates short animated educational videos. It also has its own website. TED-Ed lessons are created in collaboration with educators and animators. It has over 13.3 million subscribers and over 2.2 billion views as of February 2021.
According to en.wikipedia.org