Quadragesimo Anno §26

²⁶ We, of course, do not deny that even before the Encyclical of Leo, some rulers of peoples have provided for certain of the more urgent needs of the workers and curbed more flagrant acts of injustice inflicted upon them. But after the Apostolic voice had sounded from the Chair of Peter throughout the world, rulers of nations, more fully alive at last to their duty, devoted their minds and attention to the task of promoting a more comprehensive and fruitful social policy.