The book ""History of Christian Doctrine, from A.D. 90 to 1517 V1"" by Henry Clay Sheldon is a comprehensive examination of the development of Christian theology and doctrine from the early Church to the Reformation. The first volume covers the period from A.D. 90 to 1517, focusing on the major theological controversies, councils, and thinkers that shaped the beliefs of the Christian Church during this time. Sheldon provides a detailed analysis of...