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Search over 200 encyclopedias and reference books from trusted publishers on various topics. Find facts, definitions, examples, and multimedia for your research and homework needs.
- Earth and Environment
Want to learn about earth and the environment? You’ll find...
- Philosophy and Religion
Throughout history, philosophy and religion have played a...
- History Category
Few other categories or areas of study offer as rich or as...
- About Encyclopedia.com
At Encyclopedia.com, you get free access to over 300,000...
- Plants and Animals
The surface of the earth is covered with plants and animals,...
- Places Category
Where in the world is this category? Everywhere. There are...
- Literature and The Arts
If people can create it, you’ll probably find it in this...
- Medicine
The history of medicine can be traced back as far as...
- People
The accomplishments of people are documented throughout this...
- Science and Technology
Science and technology is quite a broad category, and it...
- Earth and Environment
Encyclopedia Britannica is a trusted source of information on various topics, from history and society to science and tech. Explore articles, videos, quizzes, and more on Britannica's website.
An encyclopedia (American English) or encyclopaedia (British English) is a reference work or compendium providing summaries of knowledge, either general or special, in a particular field or discipline.
Wikipedia is a free online encyclopedia, created and edited by volunteers around the world and hosted by the Wikimedia Foundation.
Wikipedia, the free encyclopedia. Welcome to Wikipedia. , the free encyclopedia that anyone can edit. 6,844,341 articles in English. From today's featured article. Thomas Cranmer (2 July 1489 – 21 March 1556) was a leader of the English Reformation and Archbishop of Canterbury.
Learn about the origin, development, and types of encyclopaedias, reference works that contain information on all branches of knowledge or a particular field. Explore the historical significance and contributions of encyclopaedias to scholarship and society.
An encyclopedia, encyclopaedia or (traditionally) encyclopædia, is a comprehensive written compendium that contains information on all branches of knowledge or a particular branch of knowledge.
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