Emperor Wu of the Han Dynasty established imperial academy and after having obtained the provincial examinations, and established the system of recommending talents, thus forming a unique civil service system in China.

Emperor Taizong perfected the imperial examination system, vigorously set up schools, attached importance to educational activities, and popularized the election of officials. In addition, there were many schools in the country at that time, so it was not difficult to remember the education at that time. At the same time, the imperial examination is standardized and fair, with Jinshi as the most important. Only then did Emperor Taizong see the new Jinshi filed out, and happily said, "Heroes in the world, whoever joins us will lose their lives."