Complex sentence: On March 1,1958 he was appointed Pro-Perfect of the Propagation of Faith, thus became first American member of the Roman Curia, and called to Rome where he died at the age of 70.
Split into simpler sentences: On March 1,1958, he was appointed Pro-Prefect of the Propagation of Faith, thus became first American member of the Roman Curia. He was called to Rome, where he died at the age of 70.