"As Europeans began to travel to all corners of the earth beginning in the 15th century, they were determined not only to conquer new lands but also to spread their faith. From Johann Gutenberg they had learned the power of the printed word, and were determined to use this revolutionary new technology to christianize Asia. The impact of these efforts varied depending on a number of circumstances. The two most significant variables were the ability to wield control as a colonial power (e.g. in the Philippines, but not in Japan or China) and the pre-existence of a widespread print culture (e.g. in China), or lack thereof (e.g. in India and Malaya). This summary account of missionary printing also suggests that the principal difference between Roman Catholic and Protestant presses was the emphasis placed by the former on the exposition of Christian doctrine and the printing of catechetical treatises, and the early concentration by the latter on the preparation of partial or complete versions of the Bible in local languages." (Page 114)