Nupedia
Other collaborative online encyclopedias were attempted before Wikipedia, but none were as successful.[18] Wikipedia began as a complementary project for Nupedia, a free online English-language encyclopedia project whose articles were written by experts and reviewed under a formal process.[19] It was founded on March 9, 2000, under the ownership of Bomis, a web portal company. Its main figures were Bomis CEO Jimmy Wales and Larry Sanger, editor-in-chief for Nupedia and later Wikipedia.[1][20] Nupedia was initially licensed under its own Nupedia Open Content License, but even before Wikipedia was founded, Nupedia switched to the GNU Free Documentation License at the urging of Richard Stallman.[21] Wales is credited with defining the goal of making a publicly editable encyclopedia,[22][23] while Sanger is credited with the strategy of using a wiki to reach that goal.[24] On January 10, 2001, Sanger proposed on the Nupedia mailing list to create a wiki as a "feeder" project for Nupedia.[25]
Launch and early growth
The domains wikipedia.com (later redirecting to wikipedia.org) and wikipedia.org were registered on January 12, 2001,[26] and January 13, 2001,[27] respectively, and Wikipedia was launched on January 15, 2001[19] as a single English-language edition at www.wikipedia.com,[28] and announced by Sanger on the Nupedia mailing list.[22] Its policy of "neutral point-of-view"[29] was codified in its first few months. Otherwise, there were initially relatively few rules, and it operated independently of Nupedia.[22] Bomis originally intended it as a business for profit.[30]
Wikipedia gained early contributors from Nupedia, Slashdot postings, and web search engine indexing. Language editions were also created, with a total of 161 by the end of 2004.[33] Nupedia and Wikipedia coexisted until the former's servers were taken down permanently in 2003, and its text was incorporated into Wikipedia. The English Wikipedia passed the mark of two million articles on September 9, 2007, making it the largest encyclopedia ever assembled, surpassing the Yongle Encyclopedia made during the Ming Dynasty in 1408, which had held the record for almost 600 years.[34]
Citing fears of commercial advertising and lack of control, users of the Spanish Wikipedia forked from Wikipedia to create Enciclopedia Libre in February 2002.[35] Wales then announced that Wikipedia would not display advertisements, and changed Wikipedia's domain from wikipedia.com to wikipedia.org.[36][37]
Though the English Wikipedia reached three million articles in August 2009, the growth of the edition, in terms of the numbers of new articles and of editors, appears to have peaked around early 2007.[38] Around 1,800 articles were added daily to the encyclopedia in 2006; by 2013 that average was roughly 800.[39] A team at the Palo Alto Research Center attributed this slowing of growth to the project's increasing exclusivity and resistance to change.[40] Others suggest that the growth is flattening naturally because articles that could be called "low-hanging fruit"—topics that clearly merit an article—have already been created and built up extensively.[41][42][43]
In November 2009, a researcher at the Rey Juan Carlos University in Madrid found that the English Wikipedia had lost 49,000 editors during the first three months of 2009; in comparison, it lost only 4,900 editors during the same period in 2008.[44][45] The Wall Street Journal cited the array of rules applied to editing and disputes related to such content among the reasons for this trend.[46] Wales disputed these claims in 2009, denying the decline and questioning the study's methodology.[47] Two years later, in 2011, he acknowledged a slight decline, noting a decrease from "a little more than 36,000 writers" in June 2010 to 35,800 in June 2011. In the same interview, he also claimed the number of editors was "stable and sustainable".[48] A 2013 MIT Technology Review article, "The Decline of Wikipedia", questioned this claim, revealing that since 2007, Wikipedia had lost a third of its volunteer editors, and that those remaining had focused increasingly on minutiae.[49] In July 2012, The Atlantic reported that the number of administrators was also in decline.[50] In the November 25, 2013, issue of New York magazine, Katherine Ward stated, "Wikipedia, the sixth-most-used website, is facing an internal crisis."[51]