Larry Sanger

American former professor, co-founder of Wikipedia, founder of Citizendium and other projects

Lawrence Mark Sanger (born July 16, 1968) is an American internet project developer. He worked with Jimmy Wales to create the online encyclopedias, Nupedia and Wikipedia before he created his own online encyclopedias Digital Universe and Citizendium.

Larry Sanger
L Sanger.jpg
Sanger in July 2006
Lawrence Mark Sanger

(1968-07-16) July 16, 1968 (age 54)
EducationReed College (BA)
Ohio State University (MA, PhD)
OccupationInternet project developer
Known forCo-founding Wikipedia


Wales, through his company Bomis, paid Sanger to help them to maintain Nupedia.[1][2]

On January 2, 2001, Ben Kovitz, Sanger's friend, had the idea to use a wiki to help to make Nupedia better. Sanger in turn told Wales, and on January 15, 2001, Wikipedia was launched.[3] There are different opinions on which of the three people are most responsible for Wikipedia.

In 2005, Sanger created Digital Universe, an online encyclopedia like Wikipedia.

In 2006, Sanger created Citizendium, another online encyclopedia. Citizendium uses the MediaWiki engine (like Wikipedia) but the rules are different. People must use their given names on Citizendium and experts are given special status in approving articles.

In December 2017, Sanger joined Everipedia.[4] He left the project in 2019.[5]


  1. "Nupedia | online encyclopaedia". Encyclopedia Britannica. Retrieved 2020-10-12.
  2. "Wikipedia's Co-Founder Is Wikipedia's Most Outspoken Critic". Retrieved 2020-10-12.
  3. May 24, CBS News; 2020; Am, 9:47. "The rise of Wikipedia as a source of medical information". Retrieved 2020-06-11.{{cite web}}: CS1 maint: numeric names: authors list (link)
  4. Rubin, Peter (6 December 2017). "The Wikipedia Competitor That's Harnessing Blockchain For Epistemological Supremacy". Wired.
  5. Sanger, Larry. "Introducing the Encyclosphere". Larry Sanger Blog. Larry Sanger. Archived from the original on October 20, 2019. Retrieved October 21, 2019.

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