Wikipedia was officially launched on Monday, January 15, 2001 by Jimmy Wales and Larry Sanger. There is controversy over using Wikipedia though. Most schools from grade school through college inform their students to not use Wikipedia. The reason for this is due to the fact that there is truly no central authority governing Wikipedia. This can also be seen as a pro to many individuals as well. Rather than one person, or company, controlling the content the entire Internet of billions of people are allowed to contribute, enhance and validate each and every article.