"Unrivaled online access to 18th century primary sources is provided with Electronic Enlightenment. It is updated twice yearly with new materials. It currently includes cross-searchable letters from nearly 6,000 correspondents as published in the best critical editions. Over 53,000 letters and documents are included. Includes letters in French, German and Italian as well as English. Over 230,000 scholarly annotations are also cross-searchable. An expanding network of external links to other online resources, from Chambers' Cyclopaediato the Oxford Dictionary of National Biography are provided."
Encyclopedia of the Middle Ages
"A collaborative work of over 600 scholars from more than forty countries, the Encyclopedia of the Middle Ages provides 3,000 concise and detailed articles on all aspects of the period from the fifth to the fifteenth century. It explores art, architecture, religion, law, science, language, philosophy, and theology, as well as cultural, religious, intellectual, social and political history. With a focus on focus on Europe and Christendom, the Encyclopedia also covers the rise of Islam and people of other cultures with whom Europeans came into contact."