JOHN FOXE
What the historian did not know was how similarly the Protestants would behave against the Catholics when they had the power. Since the Catholics were the established church, and the Protestants the new “heretics” the Protestants were on the receiving end of most of the atrocities at the beginning. However, as if they had been scholled by their horrible experiences, they repeated them just exchanging the perpetrators and the victims.
He was particularly referring to the reigns of Queen Elizabeth I and James I.
John Foxe, an English historian and martyrologist, was the author of Actes and Monuments (otherwise Foxe's Book of Martyrs), telling of Christian martyrs throughout Western history, but particularly the sufferings of English Protestants and proto-Protestants from the 14th century and in the reign of Mary I. The book was widely owned and read by English Puritans and helped to mould British opinion on the Catholic Church for several centuries.