I just finished reading the biography of Isaac Backus by William McLoughlin. Isaac was a preacher in New England in the 1700's. He went from the established Puritan church to the Separatist church to the Baptist church. It was a very interesting read, part biography, part Baptist history, part Revolutionary War history. I was most intrigued to hear how so many of the issues of his day (antinomianism, pastors in sin, lack of church discipline, etc.) are still issues today. It seems human nature doesn't change much. I recommend this book.