Near the end of the century, a new and terrifying disease arrives suddenly from a distant continent. Infecting people through sex, it storms from country to country, defying all drugs and medical knowledge. The deadly disease provokes widespread fear and recrimination; medical authorities call the epidemic "the just rewards of unbridled lust"; a religious leader warns that "God has raised up new diseases against debauchery." The time was the 1490s; the place, Europe; the disease, syphilis; and the religious leader was none other than John Calvin.
Throughout history, Western society has...