11 On October 11, 1959, We shall have the great pleasure of presenting mission crucifixes to a large group of Catholic missionaries who are about to leave their beloved homes and undertake the heavy responsibility of bringing the light of Christianity to distant people. (6) On the same day, in the afternoon, We are scheduled to visit the North American College on the Janiculum and there joyously celebrate with its superiors, faculty, and seminarians the completion of that college's first century. (7)
Source: Grata Recordatio (Vatican.va)