Complex sentence: He was elected President of the United States Conference of Catholic Bishops in November 1992, he had been elected as the organizations'Vice President in November of 1989, when hosting Baltimore, Maryland's bicentennial celebration of the founding of America's first Roman Catholic diocese.
Split into simpler sentences: He was elected President of the United States Conference of Catholic Bishops in November 1992. He had been elected as the organization's Vice President in November of 1989, when hosting Baltimore, Maryland's bicentennial celebration of the founding of America's first Roman Catholic diocese.