Complex sentence: During the Velvet Revolution, on 10 December 1989, he was appointed Prime Minister in place of discredited Ladislav Adamec, at the head of the first cabinet in 41 years that was not dominated by the KSČ.
Split into simpler sentences: During the Velvet Revolution, on 10 December 1989, he was appointed Prime Minister in place of discredited Ladislav Adamec. He thus headed the first cabinet in 41 years that was not dominated by the KSČ.