After Leo XIII stated for the first time – in the famous encyclical Rerum Novarum in 1891 – that there are such people as workers and that there are serious social problems, Pius XI, in another encyclical in 1931, Quadrogesimo Anno, tried to show which economic approach is in keeping with the faith.
Après la première déclaration de Léon XIII, dans sa fameuse encyclique Rerum Novarum en 1891, qui affirmait l’existence des travailleurs et des problèmes sociaux graves, Pie XI, dans une autre encyclique en 1931, Quadrogesimo Anno, essaya de montrer quelle approche économique correspondait à la foi catholique.