This study will seek to give a bird's eye-view of certain more conspicuous aspects of the theological milieu during the period which spans the pontificate of Leo XIII right down to that of Pius XI. The confluence consists mainly of the encounter between two contrasting currents - on one hand, the Neo-Scholastic revival, especially in the wake of Leo XIII's landmark encyclical Aeterni Patris (1879), and on the other, the theological Ressourcement, especially the Liturgical Movement. This interesting and stimulating context indeed turned out to be an effective crucible in the formation of the future giants.peer-reviewe