Research Databases

Access biographical information on more than 335,000 people from throughout history, around the world, and across all disciplines.

Articles from numerous academic encyclopedias of Social Work, the Oxford Classical Dictionary, American History, Climate Science, Communication, Criminology and Criminal Justice, Environmental Science, International Studies, Latin American History, Linguistics, Literature, Religion, Communication, and Politics.

We will use just two of the parts of trees, leaves and fruit, to identify the common trees of Ohio. Then, after you learn the tree’s name, you can read facts about your tree, or you can bypass the keys and go directly to the tree by name.

This program includes 30 species and subspecies of snakes that are found in Ohio. Of these 30 kinds of snakes only three are poisonous and dangerous to people and domestic animals. We also have included one species of poisonous snake that does NOT live in Ohio, the Water Moccasin.

Spanish-language encyclopedia for Spanish speakers and Spanish language learners. Includes maps, images, and activities. Hear text read aloud.