Complex sentence: The following year he made his debut in the United States when, on November 20,1899, he performed to acclaim at the New York Metropolitan Opera as Bartolo in "Il Barbiere di Siviglia".
Split into simpler sentences: The following year he made his debut in the United States. On November 20,1899, he performed to acclaim at the New York Metropolitan Opera as Bartolo in "Il Barbiere di Siviglia".