Encyclopedias

Highly respected encyclopedia in publication since 1768. Features over 100,000 scholarly articles.

10,000 articles on Catholic history, interests, and doctrine.

Columbia's encyclopedia offers 57,000 entries.

Features 20,000 topics and 2,500 images. Search field at bottom of page.

Provides access to encyclopedia entries on thousands of topics.

Premier encyclopedia covering mythology, folklore, and religion.

Database cataloging information on thousands of known species.

Hundreds of original contributions by philosophy experts and volunteers.

Collection of signs and ideograms grouped by graphic characteristics.

Over 300,000 articles from sources like Oxford University Press and Columbia Encyclopedia.

Digital collection of scientific and cultural texts, images, videos, and sounds.

Source for easy-to-understand explanations of how things work.

French language encyclopedia featuring 90,000 entries.

Diseases, symptoms, injuries, and more with photographs and illustrations.

Encyclopedia aggregator. Sources include Columbia Encyclopedia and Wikipedia.

Peer-reviewed encyclopedia written by scholars from around the world.

Online resources from the Smithsonian Institution.

Hundreds of refereed encyclopedia entries.

More than 19,500 bilingual articles as well as timelines, classroom resources, and quizzes.

Encyclopedia of more than 3,000 famous people and fictional characters.

Encyclopedia authored and edited by users. Features over 6,000,000 English entries.

Trustworthy, professionally-authored encyclopedia in print since 1917. Subscription required.

Archive of cultural heritage artifacts from libraries, archives, and museums around the world.