In this numerical comparison the Koran is not forgotten. Though it is read or heard by the millions of Islam, its character and usage remove it from the category in which the Bible is considered. It is among reading, printing, progressive nations that the Bible is the first book, the Book of Books, every year more and more without a rival. This Biblical conquest seems more marvelous when we consider that it has been achieved, in spite of the deadly hostility of what was known throughout the world as Christianity, when printing was invented.