Wikipedia is a free content, multilingual online encyclopedia written and maintained by a community of volunteer contributors through a model of open collaboration. It is the largest and most-read reference work in history. Wikipedia originally developed from another encyclopedia project called Nupedia. CD-ROM encyclopedias
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.
Education is about learning skills and knowledge.It also means helping people to learn how to do things and support them to think about what they learn. It's also important for educators to teach ways to find and use information.
Wikipedia is a free online encyclopedia, created and edited by volunteers around the world and hosted by the Wikimedia Foundation. English 6 458 000+ articles 日本語 1 314 000+ 記事
The Jewish Encyclopedia: A Descriptive Record of the History, Religion, Literature, and Customs of the Jewish People from the Earliest Times to the Present Day is an English-language encyclopedia containing over 15,000 articles on the history, culture, and state of Judaism up to the early 20th century.