Welcome to Citizendium

Natural Sciences     Social Sciences     Humanities     Arts     Applied Arts and Sciences     Recreation Planned server upgrade There will be a brief disruption of service on Tuesday 7/21/2020 while the Citizendium hardware is upgraded. An announcement will appear here after the server has been upgraded. A 15-year experiment in a Wikipedia-like setting Welcome to Citizendium, a wiki for providing free knowledge where authors use their real, verified names. We welcome anyone who wants to share their knowledge by writing and improving articles on virtually any subject. This wiki was unsuccessful in achieving its original goals (see https://www.quora.com/What-is-the-difference-between-Wikipedia-and-Citizendium). A dedicated few writers have continued working in the wiki, improving articles that they believe are useful, and which for various reasons probably could not be written in Wikipedia. On or about Sept. 30, 2020, we plan to end Citizendium as a public "open" project, yet (possibly) keep the wiki running and editable by a combination of donations and subscriptions. How this might occur is still being examined. See Recent Changes—an overview of articles we are writing now. Join us Join here and start a new article or improve existing ones. Get started: How to collaborate | How to format pages Wikipedians are very welcome! For more details on participation, see Why Citizendium? and Why I Contribute. We Need Support From Donations! Please help! Funds are used to pay for hosting our servers. See our financial report for complete details. Please make your donations here.

Some of our finest Citable Articles (146) Developed Articles (1,128) (16,469 total articles) There are in fact two things, science and opinion; the former begets knowledge, the latter ignorance. — Hippocrates        —add a quotation about knowledge or writing •Did You Know? Monthly Donation Day  |  Monthly Donor Honor Roll Our help system and forum Questions and answers to help you find the information you need More about the project We have a policy document to provide a framework for governance. We have 16,469 articles at different stages of development, of which 146 have expert-approved citable versions. Our community is collegial and congenial; everyone writes under his or her verified real name. We prefer new material but allow work from other sites to be imported and improved under certain conditions. To learn more about the project, see our article on ourselves, our Help System, our financial report and our Statistics page. Follow us on Twitter or Facebook.