> During the cultural revolution, the previous government was overthrown and escaped to Taiwan

Not the Cultural Revolution. Cultural Revolution was in the 1960s, the Communist victory over the Nationalists and the Nationalists' flight to Taiwan was late 1940s. The "Cultural Revolution" was not a "revolution" in the classic sense. It was not an attempt to install a new government. It was a totalitarian exercise in which the Communist Party – led by Mao – attempted to eliminate every aspect of Chinese culture and society that wasn't enthusiastically communist