Kaftan, Theodor Kahle, Wilhelm Kahlefeld, Heinrich Kaiser, Jochen-Christoph Kalaitzidis, Pantelis Kalkandjieva, Daniela Kallis, Anastasios Kalthoff, Albert Kampmann, Jürgen Kamuf, Peggy Kant, Immanuel Kantzenbach, Friedrich W. Karakolis, Christos Karathanasis, Athanasios E. Kardaras, Christos Karlström, Nils Karmiris, Ioannis Kartashev, Anton V. Käsemann, Ernst Kasper, Walter Katkov, Mikhail N. Katz, Michael R. Kaufman, John Kaufmann, Thomas Kavelin, Konstantin D. Kazamias, Alexander Keats, John Keble, John Kechriotis, Vangelis Keller, Adolf Kenis, Leo Kennedy,…

In: Volume 1 Dawn of Ecumenism | Part II. Prehistory: The Challenges of Modernity previous chapter 1 Introduction In 1856, when Fr. Jean-Xavier (Ivan Sergeyevich) Gagarin, a Russian Orthodox who had converted to Catholicism and become a Jesuit, chose primary sources for the appendices of his book, La Russie sera-t-elle catholique?, he could only publish old texts: the decree of union of the Council of Florence (1439), Clement viii’s bull on the reunion of Russian bishops (1595), and Benedict xiv’s encyclical to missionaries assigned to the East, Allatae sunt (1755).1 The situation w…