Title: Unless you believe, you shall not understand
Subjects: Apologetics, Christianity, Christianity and other religions, Church history, History, History of doctrines, Judaism, Medieval Logic, Relations, Trinity, Universität Wien, Vienna (austria), history, Education, medieval, Early works to 1800, Apologetics of the Trinity, Contributions in apologetics of the Trinity
Places: Vienna (Austria)
People: Heinrich von Langenstein (ca. 1325-1397)
Time periods: Middle Ages, 600-1500