[citation needed] In early 10th century, the head of Khúc family Khúc Thừa Dụ succeeded in taking over the control of Tĩnh Hải quân (now the northern part of Vietnam) and became the first Jiedushi of native origin that marked the beginning of the independence of Vietnam,[4] because while the country still nominally belonged to the Tang dynasty, it had now a status of autonomy with a native ruler who could decide matters without any interference from China.
Other important social changes initiated by Khúc Hạo were the levelling of cultivated land tax (thuế ruộng) and the abolishment of corvée (lực dịch).
[11] The reign of Khúc Hạo was praised for its tolerance and simplicity towards common people, hence Tĩnh Hải quân had a period of stability and prosperity.
[11] However, in the next year, Later Liang appointed Liu Yin, the warlord who ruled Qinghai Circuit (清海, headquartered in modern Guangzhou, Guangdong), as Jiedushi of Tĩnh Hải quân, meaning the Chinese still wanted to regain control of Vietnam.
[citation needed] Nevertheless, Dương Đình Nghệ, who was a subordinate of the Khúc family, quickly restored the indigenous control of the country in 931.