Wikipedia is a free online encyclopedia that anyone can edit. It is written and maintained by a community of volunteers, known as Wikipedians, through open collaboration and using a wiki-based editing system called MediaWiki.

Wikipedia is the largest and most-read reference work in history, and has consistently been one of the 10 most popular websites. Created by Jimmy Wales and Larry Sanger on January 15, 2001, it is hosted by the Wikimedia Foundation, an American non-profit organization.

Wikipedia is used for a variety of purposes, including:

Education: Wikipedia is a valuable resource for students and teachers, providing access to information on a wide range of topics.

Research: Wikipedia is a useful tool for researchers, as it can provide a starting point for further research.

Entertainment: Wikipedia can be a fun and informative way to spend time, learning about new things.

Communication: Wikipedia can be used to communicate with others, as it allows users to share information and collaborate on projects.

Wikipedia is a valuable resource that can be used for a variety of purposes. It is a free and open source encyclopedia, which means that anyone can edit it. This makes Wikipedia a dynamic and ever-changing resource, as new information is constantly being added and old information is being updated.