Archbishop Paul Clarance Schulte led the archdiocese from 1946 until 1970, and was called to Rome for the Second Vatican Council. He was known for his humility, for building three high schools in the Indianapolis area and seventeen churches in the archdiocese, and for his leadership during the tumultuous 1960s. On December 17, 1956, during Schulte's tenure as Archbishop of Indianapolis, the Diocese of Gary was erected in northwestern Indiana. Archbishop Schulte resigned from the post in Indianapolis in 1970. Upon his retirement in 1984, he was the oldest and longest-serving bishop in the United States. George Joseph Biskup, who became Archbishop of Indianapolis in 1970, established the first Priests Senate in order to expedite decisions and encourage communications between the archbishop and the priests within the archdiocese.