What is Mediawiki?
A wiki is a web application that allows users to create and edit web page content using a web browser. The term wiki also refers to the collaborative software used to create such a website. Mediawiki is a wiki software package licensed under the GNU General Public License, making it free and open source software. This Mediawiki software is used to run the popular web encyclopaedia Wikipedia, besides all projects of Wikimedia, wikis hosted by Wikia, and many other wikis.