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 online encyclopedia offers 57,000 entries.

Featuring 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 of scientific information on and photographs of known species.

Hundreds of original contributions by philosophy experts and volunteers.

Massive collection of signs and ideograms grouped by graphic characteristics.

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

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

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

Encyclopedia aggregator. Sources include Columbia Encyclopedia and Wikipedia.

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

Online resources from the Smithsonian Institution.

Hundreds of refereed encyclopedia entries.

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

Find more than 6,000,000 English entries, written and edited by users.

Traditional encyclopedia in print since 1917. Subscription required.

Archive of primary materials from cultures around the world.