Title: The rise and expansion of Christianity in the first three centuries of the Common Era
Subjects: Primitive and early church, Apologetik, Weltuntergang, Christentum, Church history, Ausbreitung, Mission, Bibelwissenschaft, Church history, primitive and early church, ca. 30-600, Congresses
People: Adolf von Harnack (1851-1930)
Time periods: Primitive and early church, ca. 30-600