Ancient and Medieval Christianity
Knowing where to start isn't always easy, especially when you're dealing with an unfamiliar subject. Sometimes the best place to start is a subject specific dictionary or encyclopedia. Below is a selected list of online reference resources
Encyclopaedic coverage of the second millennium BCE to early medieval Europe; with special emphasis on the interaction between Greco-Roman culture and Semitic, Celtic, Germanic, and Slavonic culture, and ancient Judaism, Christianity, and Islam. Also includes the aftermath of antiquity and the process of continuous reinterpretation and revaluation of ancient heritage, and the history of classical scholarship.
Oxford’s art reference works: Grove Art Online, the Benezit Dictionary of Artists, the Encyclopedia of Aesthetics, The Oxford Companion to Western Art, and The Concise Oxford Dictionary of Art Terms.