Earth Day

Earth Day is around the corner! Earth Day began during the big wave of environmentalism in the 1960s and 1970s.
Learn more about the holiday, the environment, and the great work of environmentalists worldwide.

Earth Day | Earth Day: Stats & Facts | Earth Day by the Numbers

Most Popular

Earth Day: Going GreenLearn how to turn your environmentally mean lifestyle into a green one and find information about places that are taking positive environmental steps.

Earth Day: Stats & FactsFind explanations of the greenhouse effect, the ozone layer, and substances that pollute the air; statistics about polluted areas in the U.S. and the world, information about environmental disasters, and more.

Easter and PassoverHistory, lore, customs, and fascinating trivia

A Tale of Two EastersEaster is not only a movable holiday but a multiple one: in most years Western Christian churches and Eastern Orthodox churches celebrate Easter on different dates.

Christian Groups That Don’t Celebrate Easter

Year-by-Year Chronology:

1900–2019

Infoplease Sources

Video Library
A large collection of informational and educational videos from animals and landmarks to language arts and history.
Almanacs
A vast compendium of statistics and up-to-date facts and figures, on everything you need to know.
Dictionary
An unabridged dictionary from aalii to zymurgy, including a pronunciation guide.
Atlas
An atlas featuring maps and detailed profiles of all 193 countries and the 50 U.S. states.
Encyclopedia
A current and comprehensive encyclopedia covering all the major branches of knowledge from astrophysics to Zimbabwe.