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  1. Explore the fact-checked online encyclopedia from Encyclopaedia Britannica with hundreds of thousands of objective articles, biographies, videos, and images from experts.

  2. Life sciences. Medical. See also. References. External links. List of online encyclopedias. This is a list of well-known online encyclopedias that are accessible or formerly accessible on the Internet . The largest online encyclopedias are general reference works, though there are also many specialized ones.

  3. en.m.wikipedia.org › wiki › WikipediaWikipedia - Wikipedia

    Wikipedia is a free content online encyclopedia written and maintained by a community of volunteers, known as Wikipedians, through open collaboration and the use of the wiki-based editing system MediaWiki. Wikipedia is the largest and most-read reference work in history.

  4. The free online history encyclopedia with fact-checked articles, images, videos, maps, timelines and more; operated as a non-profit organization.

  5. We host Wikipedia, the free online encyclopedia, created, edited, and verified by volunteers around the world, as well as many other vital community projects. All of which is made possible thanks to donations from individuals like you.

  6. Infoplease is a free, authoritative, and respected reference for Internet users that provides a comprehensive encyclopedia, almanac, atlas, dictionary, and thesaurus.

  7. As the Internet's premier collection of online encyclopedias, Encyclopedia.com provides you reference entries from credible, published sources like Oxford University Press and Columbia Encyclopedia. At Encyclopedia.com, you get free access to over 300,000 reference entries from sources you can cite.

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