 According to one historian, the ITC contributed the CDF's statement "Mysterium Ecclesiae", issued in 1973, a wide-ranging defense of the Church in the modern world.In October 1969, at the first meeting of the ITC, Karl Rahner had produced a document on the principle questions which he felt should be addressed.However, Rahner resigned after the first term, claiming that the ITC was "stewing in its own juices".