History & Humanities

The Stanford Encyclopedia of Philosophy provides an online encyclopedia with browse tools, new entries, and chronological archives.

The Logitext interactive tutorial teaches the sequent calculus through a simple set of inference rules.

Data.gov is the U.S. government's official open-data portal, with public datasets available through its searchable catalog.

GovTrack tracks legislation and votes in the U.S. Congress, along with actions by the White House.

The VGA Museum catalogs video graphics hardware by company and category.

Pessimists Archive documents historical panics about technology through a timeline and related articles.

A Book of Creatures is a guide to beings from myth, legend, and folklore.

The Retro Web documents computer hardware, with its catalog presented through a web application.

The U-boat Archive provides documents and photographs about the Battle of the Atlantic.

Seterra offers more than 400 geography map quizzes, with printable materials for educators and mobile play.

Cost of Living provides cost-of-living data and information about the Numbeo API.

iCivics provides educational resources and activities about civics for classroom use.

Philosophy Bro explains complex philosophical ideas in approachable language for readers.

Demons of the Deep explores sea creatures and marine life across the Arctic, tropical seas, and Southern Ocean.

Killed by Google tracks discontinued Google products and lets users search and filter its catalog.

On This Day presents historical events, birthdays, deaths, photographs, and notable people for dates across history.

Mission US offers researched educational media for middle school history learning, designed for classroom and independent use.

WorldData.info provides country statistics, comparisons, and rankings across geography and demographics.

Players can build a daily flag from its parts or draw one from memory in this flag quiz game, then see feedback.

The Retro Web provides a motherboard database with search and filters for vintage computers.

The HP Computer Museum documents HP computers, including the company's early 2116 model.

EveryPolitician maps political office-holders across countries and territories, including heads of state, parliamentarians, and officials.

This page documents Inuit mythology and traditional stories, with material presented in Inuktitut.

EveryPolitician tracks political office holders, including legislators, judges, and rulers around the world.