In 230, King Sun Quan of the Kingdom of Wu sent 10,000 troops, led by 
generals Wei Wen and Zhuge Zhi, to Yizhou (Taiwan). Their starting point was 
Piling (near present-day Changzhou). This is the earliest historical record of 
large-scale mainland exploration of Taiwan. 
From 607 to 610 Emperor Yangdi of the Sui Dynasty dispatched three squads of 
envoys from Yi'an Prefecture (near present-day Shantou) to Taiwan. The first 
group was led by cavalry commandant, Zhu Kuan, and marine commandant, He Man. 
They had been commissioned to search for tribes living outside the mainland. 
They arrived in Liuqiu (present-day Taiwan) in 607. The second year, the emperor 
sent Zhu Kuan to the island to convey his goodwill. In 610, court officials Chen 
Leng and Zhang Zhenzhou arrived in Liuqiu with more than 10,000 troops. 
From the latter period of the Tang Dynasty to the Northern Song Dynasty 
(960-1127), the economic center in the mainland moved southward, and the 
increasing population along the southeastern coast put great pressure on its 
farmland. This factor, together with incessant wars, forced many people to 
migrate to Penghu and Taiwan. 
During the Southern Song Dynasty (mid-12th century), the government already 
had troops garrisoned and civilians living in Penghu. According to the Records 
of the Tribes, Penghu was under the administration of Jinjiang County, Fujian 
Province. In 1290 the Yuan Dynasty set up a military inspectorate in Penghu to 
administer civil affairs in Taiwan and Penghu, which were then under the 
jurisdiction of Jinjiang, Fujian Province. By that time, Taiwan and Penghu were 
already formally part of China's administrative area. 
Early development of Taiwan began during the Three Kingdoms period. According 
to the records of the Three Kingdoms, Sun Quan, ruler of the Kingdom of Wu, 
dispatched an army to Taiwan in 230 A.D., led by generals Wei Wen and Zhuge Zhi. 
They brought back to the mainland several thousand local Taiwan residents. This 
is the earliest record of mainland exploration in Taiwan. During the Sui Dynasty 
(581-618), Emperor Yangdi sent three groups of envoys to Taiwan, the third in 
610, when court officials Chen Leng and Zhang Zhenzhou led an army to Taiwan. 
They brought back several thousand local residents who settled in Fulushan, 
Fuzhou. In the Tang Dynasty (618-907), people on the southeastern coast began to 
migrate to Penghu and Taiwan. Around 1290, the Yuan Dynasty established a 
military inspectorate to administer civil affairs in Penghu and Taiwan, which 
were placed under the jurisdiction of Jinjiang County, Fujian Province. During 
this period, the natives of Taiwan, mainly the Gaoshan ethnic group, lived by 
primitive farming and fishing.