I don't have access to any English version on this, but if the wikipedia article is correct this work deserves a thread of its own:
Kriminalgeschichte des Christentums - Wikipedia
Kriminalgeschichte des Christentums (In English Criminal History of Christianity) is the main work of the author and church critic Karlheinz Deschner. It describes the misconduct attributed to various Christian churches, denominations, sects, and leagues, as well as its representatives and Christian sovereigns during Christian history. The work covers the entire history of Christianity from its biblical beginnings until the present. It was published in ten volumes beginning in 1986, with the final volume appearing in March 2013.[1]
