During the Sui Dynasty, beggars were ordered and both sides traded.
The Yuan Dynasty said that the Liuqiu government established the Penghu Inspection Department to strengthen the jurisdiction of Liuqiu.
Zheng Chenggong recovered Taiwan Province Province in Ming Dynasty.
The Qing dynasty 1684 set up Taiwan government, which was subordinate to Fujian province.
Post-49 communication
92 * * * Knowledge 1992 Cross-strait talks adhere to the one-China position.
ECFA
1October 26th Framework Agreement on Economic Cooperation across the Taiwan Strait
etc
You can look at the columns of many experts and journalists on cross-strait issues on the China Review News Network.