Just as the rise of electronic communication has changed our lives, so the rise of printing technology during the late Middle Ages had a profound impact on the Protestant Reformation of the early sixteenth century. This lecture will outline the general significance of printing to the process of the Reformation, and its further historical effects. Professor Kaufmann will argue, as part of a new attempt to reconstruct the events of October 31st, 1517, that the printing press stood at the beginning of Luther's reform activities in a very pronounced way. He will look at the acceleration of print that was practised in Wittenberg from spring 1520 on. He will also consider the innovative and ground breaking significance of the Reformation to the Latin-European civilization to the history of printed books and publications, including its consequences for the Roman Catholic church.