On The Early Preaching Of The Gospel

St. Robert Bellarmine, De Verbo Dei, Book 2, Chap. 15: “… the Apostles preached the Gospel throughout the whole world and established churches, as is clear from St. Paul to the Romans (10:18) and to the Colossians (1:6), and from the Gospel of Mark (16:15). Likewise it’s clear from Irenaeus, Book 1, Chap. 3, who, although he was nearest to apostolic times, nevertheless said that in his own time churches were already established in the East, in Libya, Egypt, Spain, Germany, and regions in between, that is, Italy and Gaul.”