Best encyclopedia tools

History reference supported by timelines, maps and sources

Scholar-written reference articles on philosophy

A search across published encyclopedias and reference books

Peer-reviewed social-anthropology reference essays

A scholarly multimedia reference to Swiss history

A multilingual encyclopedia with a language-aware search

Swedish-language reference about Finland

A visual search tool for children with web, image and illustrated encyclopedia searches.

Reference articles on Georgia's history and culture

Literary reference organized around people, works and context

A collaboratively written mathematics encyclopedia

French dictionary and encyclopedia reference

A subject-organized reference to Alabama

A Danish reference portal spanning subjects and source works

Philosophy reference searchable by topic and context

Catalan reference search across substantial published works

French encyclopedia reference with atlas tools

A searchable reference to science-fiction writing and subjects

Norwegian encyclopedia entries across a broad subject range

Expert-curated encyclopedia articles with scholarly review