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Wikipedia is a free online encyclopedia, created and edited by volunteers around the world and hosted by the Wikimedia Foundation.
Help desk – Ask questions about using or editing Wikipedia. Reference desk – Ask research questions about encyclopedic topics. Content portals – A unique way to navigate the encyclopedia.
Wikipedia began as a complementary project for Nupedia, a free online English-language encyclopedia project whose articles were written by experts and reviewed under a formal process. [20] It was founded on March 9, 2000, under the ownership of Bomis, a web portal company.
English Wikipedia is the most-read version of Wikipedia, accounting for 48% of Wikipedia's cumulative traffic, with the remaining percentage split among the other languages. The English Wikipedia has the most articles of any edition, at 6,840,128 as of June 2024.
Wikipedia currently has more than sixty-three million articles in more than 300 languages, including 6,839,541 articles in English, with 116,651 active contributors in the past month. Wikipedia's fundamental principles are summarized in its five pillars .
シウダー・フアレス放射能汚染事故 は、 1984年 に メキシコ シウダー・フアレス で発生した 放射能汚染 事故である。. この事故は、民間の医療会社が違法に購入し、その後、操作する人員が不足したために解体された 放射線治療 装置に起因するものであっ ...
To provide a link to a Wikipedia-specific search, include in the google-link +site:en.wikipedia.org (no spaces before or after), like this: [ [google:Tip-of-the-day+site:en.wikipedia.org]]. Which looks like this: google:Tip-of-the-day+site:en.wikipedia.org.
We use Simple English words and grammar here. The Simple English Wikipedia is for everyone, such as children and adults who are learning English. There are 253,168 articles on the Simple English Wikipedia. All of the pages are free to use.
About. The Simple English Wikipedia is a free encyclopedia for people who are learning English. The Simple English Wikipedia's articles can be used to help with school homework or just for the fun of learning about new ideas. Non-English Wikipedias can also translate from the articles here.
Wikipedia is a free online encyclopedia website in 336 languages of the world. 324 languages are currently active and 13 are closed. People can freely use it, share it, and change it, without having to pay.
