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History of PDF. The Portable Document Format (PDF) was created by Adobe Systems, introduced at the Windows and OS/2 Conference in January 1993 and remained a proprietary format until it was released as an open standard in 2008. Since then, it has been under the control of an International Organization for Standardization (ISO) committee of ...
The original video by Pinkfong is now the most viewed video on the site. On October 29, 2020, Baby Shark surpassed 7 billion views, and on November 2, 2020, it passed Despacito to become the most viewed video on YouTube. On February 23, 2021, Baby Shark surpassed 8 billion views, becoming the first video to do so.
Time period. Key developments in online video web sight. 1974–1992. Development of practical video coding standards. The development of the discrete cosine transform (DCT) lossy compression method leads to the first practical video formats, H.261 and MPEG, initially used for online video conferencing . 1993–2004.
Portable Document Format ( PDF ), standardized as ISO 32000, is a file format developed by Adobe in 1992 to present documents, including text formatting and images, in a manner independent of application software, hardware, and operating systems.
Crash Course (web series) Crash Course. (web series) Crash Course (sometimes stylized as CrashCourse) is an educational YouTube channel started by John Green and Hank Green (collectively the Green brothers ), who became known on YouTube through their Vlogbrothers channel. [2] [3] [4]
World History Encyclopedia (formerly Ancient History Encyclopedia) is a nonprofit educational company created in 2009 by Jan van der Crabben. [1] The organization publishes and maintains articles, images, videos, podcasts, and interactive educational tools related to history. All users may contribute content to the site, although submissions ...
BBC One. Release. 23 September. ( 2012-09-23) –. 11 November 2012. ( 2012-11-11) Andrew Marr's History of the World is a 2012 BBC documentary television series presented by Andrew Marr that covers 70,000 years of world history from before the beginning of human civilisation, as African nomadic peoples spread out around the world and settled ...
Mark Felton (born 1974) is an English author, historian, and YouTuber. Felton has written over a dozen non-fiction books. He runs several channels on YouTube covering different historical subjects of the 20th and 21st century, mainly related to World War I, World War II, and the Cold War.