The "Creative Commons Timeline, 2020" is a derivative of "Creative Commons Timeline" by Andree Rathemache, 2008 used under CC-BY 4.0. "Creative Commons Timeline, 2020" is licensed by Kendall Larson under CC-BY 4.0.
Timeline references (the content sources below) are by Andree Rathemache, 2008 are licensed under CC-BY 4.0.
Content sources:
Creative Commons. n.d. "CC Certificate Unit 1: What is Creative Commons?" Accessed October 7, 2018. https://certificates.creativecommons.org/about/certificate-resources-cc-by/.
Creative Commons. n.d. "Network Strategy." Accessed September 30, 2018. https://creativecommons.org/about/global-affiliate-network/network-strategy/.
Creative Commons. n.d. "State of the Commons." Accessed September 30, 2018. https://stateof.creativecommons.org/.
Lessig, L. 2014. "How I Lost the Big One." Legal Affairs, March/April 2004. http://www.legalaffairs.org/issues/March-April-2004/story_lessig_marapr04.msp.
Murphy, Julia and Max Roser. 2018. "Internet". OurWorldInData.org. https://ourworldindata.org/internet.
Wikipedia, The Free Encyclopedia, s.v. “Copyright Term Extension Act,” (accessed September 27, 2018), https://en.wikipedia.org/wiki/Copyright_Term_Extension_Act.
Wikipedia, The Free Encyclopedia, s.v. “Creative Commons,” (accessed September 30, 2018), https://en.wikipedia.org/wiki/Creative_Commons.
Wikipedia, The Free Encyclopedia, s.v. “Eldred v. Ashcroft,” (accessed September 27, 2018), https://en.wikipedia.org/wiki/Eldred_v._Ashcroft.
Wikipedia, The Free Encyclopedia, s.v. “Global Internet Usage,” (accessed September 30, 2018), https://en.wikipedia.org/wiki/Global_Internet_usage.
Wikipedia, The Free Encyclopedia, s.v. “History of the Internet,” (accessed September 27, 2018), https://en.wikipedia.org/wiki/History_of_the_Internet.
Wikipedia, The Free Encyclopedia, s.v. “World Wide Web,” (accessed September 27, 2018), https://en.wikipedia.org/wiki/World_Wide_Web.
Image sources:
CC logo on blue world map image by Creative Commons
Creative Commons license spectrum by Shaddim, original CC license symbols by Creative Commons, licensed under CC BY 4.0, via Wikimedia Commons
Creative Commons icon by Creative Commons
Internet users by world region image by Max Roser, licensed under CC BY-SA
Ken Thompson sitting and Dennis Ritchie at PDP-11 image by Peter Hamer, licensed under CC BY-SA 2.0, via Wikimedia Commons
Lawrence Lessig image by Joi Ito, licensed under CC BY 2.0, via Wikimedia Commons
Partial map of the Internet image by The Opte Project, licensed under CC BY 2.5, via Wikimedia Commons
Trend of Maximum U.S. General Copyright Term image by Tom W. Bell, licensed under CC BY-SA 3.0
State of Creative Commons, 2017 image by Creative Commons, licensed under CC BY 4.0, via Wikimedia Commons
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The original timeline created using Timeline, a tool from the Knight Lab at Northwestern University using this Google Sheets file.