The 21 Ecumenical CouncilsNew Advent lists the order of councils over the years and gives readers the opportunity to view a summary or do further reading on each council.
Internet Ancient History Sourcebook: Christian OriginsThe Internet History Sourcebooks Project is located at the History Department of Fordham University, New York. The Internet Medieval Sourcebook, and other medieval components of the project, are located at the Fordham University Center for Medieval Studies.The IHSP recognizes the contribution of Fordham University, the Fordham University History Department, and the Fordham Center for Medieval Studies in providing web space and server support for the project. The IHSP is a project independent of Fordham University. Although the IHSP seeks to follow all applicable copyright law, Fordham University is not the institutional owner, and is not liable as the result of any legal action.
Patrologia Latina | PatristicaPatrologiae Cursus Completus. Series Latina, ed. J.-P. Migne. Includes links to resources.
Theological Questions by Todd Hanneken | OA eBookTheological Questions is an Open Educational Resource (free textbook) that originates from St. Mary’s University in San Antonio and was created with funding form the Atla OER Grant Program. This open textbook was used at St. Mary's in the first of two required core theology courses. It is designed to give a broad historical overview of theological questions from the perspective of the Catholic tradition. It seeks to represent fairly a variety of questions and answers within and beyond the Catholic tradition. This OER is a foundation for other teachers of introductory courses in theology who may wish to adapt it for their purposes.