Machine a b Quilter, Laura (October 24, 2012). 145 In contrast, the trend analysis published in The Economist presents Wikipedia in other languages (non-English Wikipedia) as successful in retaining their active editors on a renewable and sustained basis, with their numbers remaining relatively constant at approximately 42,000. Encyclopædia Britannica, which were unable to compete with a product that is essentially free. West, Andrew.; Chang, Jian; Venkatasubramanian, Krishna; Sokolsky, Oleg; Lee, Insup (2011). Retrieved May 5, 2009. Retrieved August 18, 2014. A b c Black, Edwin (April 19, 2010) Wikipedia The Dumbing Down of World Knowledge Archived September 9, 2016, at the Wayback Machine, History News Network Retrieved October 21, 2014 a. 129 130 The largest, the English Wikipedia, has over.8 million articles.