I. The Historical Context/Background of the Encyclical
Octogesima adveniens was not written in a historical vacuum or in discontinuity from Catholic social teachings of the previous decade. Rather the letter continued themes found in Gaudium et spes and Mater et magistra and responded to the historical context in which it was written.
To mark the eightieth anniversary of Rerum novarum, Paul VI did not write an encyclical letter, but rather an apostolic letter to Maurice Cardinal Roy, who was president of the Pontifical Commission Justitia et Pax. In fact, the last encyclical letter of his pontificate, humane vitae, was written three years prior to this letter and ten years before his death. The move away from the encyclical as a literary form already suggests Paul VI's awareness of the importance of human experience or a historically conscious methodology. A look at the structure of Octogesima adveniens confirms this awareness. After a seven-paragraph introduction, Octogesima adveniens turns to a reading of the signs of the times, which highlight the challenges faced by particular groups of people (e.g. workers and women), world-wide issues (e.g. media influence and environment) and aspirations (e.g. participation and equality). The remainder of the letter provides some ecclesial reflections on these signs of the times and an exhortation to action. Thus, two-thirds of the letter details the historical context for any ecclesial reflection or action.
Paul VI himself had experienced firsthand the diverse situations in which Christians found themselves, especially in his journeys to Israel (1964), to the United States of America (1965), to India (1966), to Turkey and Portugal (1967), to Medellin, Colombia (1968), and to Uganda (1969). These encounters with the people of God, their poverty, and their misery profoundly moved Paul VI, as his Wednesday audience reflections attest.
In addition, the years since Populorum progressio and Humane vitae