Introduction to Christianity Introduction to Christianity Introduction to Christianity () is a 1968 book written by Joseph Ratzinger (Pope Emeritus Benedict XVI). Considered one of his most important and widely read books, it presents a "narrative Christology" that demonstrates the place for faith is in the Church. The book offers a "remarkable elucidation of the Apostle's Creed" and gives an "excellent, modern interpretation of the foundations of Christianity". Originally published in German in 1968 under the title, "Einführung in das Christentum", Ratzinger restates the Apostles' Creed and the meaning of this foundational text in language that has a greater contemporary resonance than the
Joseph Ratzinger as Prefect of the Congregation for the Doctrine of the Faith Joseph Ratzinger as Prefect of the Congregation for the Doctrine of the Faith Joseph Ratzinger was named by Pope John Paul II on 25 November 1981 Cardinal-Prefect of the Congregation for the Doctrine of the Faith, formerly known as the Holy Office and, especially around the sixteenth century, as the Roman Inquisition. He became both Archbishop of Munich-Freising and a cardinal in 1977. He resigned as archbishop in early 1982, in light of his new duties as Prefect. While continuing to be Prefect, Ratzinger was promoted within the College of Cardinals to become Cardinal-Bishop of Velletri-Segni in 1993, and became