Depending on your time reference, it’s either 1895 when they were part of Japan or 1949 when Maoism took control of China.
Yeah.
Neither Mao or Sun Yat Sen thought Taiwan was part of China.
Chiang Kai-shek was the one who asked for Taiwan to become part of the Republic of China after Japan was defeated. But it never happened because the communists took over China in 1949 before Japan officially gave up sovereignty over Taiwan in 1952.
Mao just wanted Taiwan because Chiang was able to retreat there.