Ada, the prime minister of the Tang Dynasty, made great contributions to the economic development of the Tang Dynasty. He expanded waterway transportation and developed agriculture and animal husbandry. In the current words, it is to drive the people to get rich. Ada is deeply loved by people all over the world. As the saying goes, a tree catches the wind, and the villain in the DPRK is jealous of Ada's talent. Ada was framed and killed by the traitor Yang Yan in Korea.

After the Anshi Rebellion in the Tang Dynasty, the economies of all parties became very depressed, the imperial court was not very rich, and some people could not even eat. As an official in the Tang Dynasty, Ada was particularly anxious. Ada is a very clever man. He is good at developing economy. Ada put forward some opinions on economic reform to the imperial court. Ada first built a waterway and created a waterway transportation route, which is equivalent to adding another trade route. As the saying goes, if you want to be rich, build roads first.

During the period of Tang Daizong, the main way to transport grain was by water transportation, but sometimes there were traffic jams, just like the current traffic jams. However, Ada thought of a good way, that is, to build warehouses and transfer stations by means of segmented transportation, that is, to turn around a large amount of grain and then transport it to its destination in batches. This greatly improves the speed and saves time and effort. This way is a bit like express delivery now.

Ada also invented the Changping method, that is, he established a perfect information network to collect some drought and flood disasters and crop harvests in various places. According to this information, Ada will make statistics on the national economic market dynamics and adjust the prices of various products. For example, some places need food because of drought, and some places have poor trade development. He will make adjustments to learn from each other's strengths, so that the people can live a stable life and the economic development can be greatly improved.

Ada experienced four dynasties: Xuanzong, Tang Suzong, Tang Daizong and Tang Dezong, and made great contributions to the economic development of the Tang Dynasty. Perhaps because of his great contribution, it caused the jealousy of some small people in the court. During the Tang Dezong period, Prime Minister Yang Yan was jealous of Ada, so he framed him and said that Liu Yan was going to rebel and provoke trust between Ada and Tang Dezong. Ada is deeply loved by people all over the world. Tang Dezong was afraid that Liu Yan would really rebel, so he gave Ada a gift.