The Principal Agent of Change in the 19th Century

The rise of printed books and literacy meets an urgent need for people who want to read the Bible I assume. So it's a terrific period of change because of this desire, this desire to understand God at the time. You also at the end of each one of your chapters remark on a principal agent. Give us some examples of that. In the 19th century I quote about 10 candidates who could be considered the principal agent of change. The person who had more effect on the lives of the contemporaries than anybody else. For the 14th century I was very controversial in picking an English king. I went for Karl Marx the 19th Century but a number of people told me I should have chosen