reasons why wikipedia is not a good source
Wikipedia:Wikipedia is not a reliable source Wikipedia is not a reliable source. Wikipedia can be edited by anyone at any time. This means that any information it contains at any particular time could be vandalism. Biographies of living persons are especially vulnerable to this issue. Some edits on Wikipedia that are in error are sometimes fixed, however because Wikipedia cannot monitor contributions made by millions of users, there are many errors that remain unnoticed for days, weeks, months, and even years. Therefore, Wikipedia should not be considered a source for 'fact-checking'.
History of the World Wide Web On August 6, 1991,[18] Berners-Lee posted a short summary of the World Wide Web project on the alt.hypertext newsgroup, inviting collaborators.[19] This date is sometimes confused with the public availability of the first web servers, which had occurred months earlier.