Complex sentence: The candidate for office was appointed by the King, and presided over a very unstable political system-in its first 60 years of existence (1861-1901), Italy changed its prime minister 37 times.
Split into simpler sentences: The candidate for office was appointed by the king, and presided over a very unstable political system. In its first 60 years of existence (1861-1901), Italy changed its prime minister 37 times.