After eliminating the powerful L clan, Emperor Wen was deliberately chosen as the emperor, since his mother, Consort Bo, had no powerful relatives. His reign brought a much needed political stability that laid the groundwork for prosperity under Emperor Wu. According to historians, Emperor Wen trusted and consulted with Confucian-educated ministers on state affairs; under the influence of his Daoist wife, Empress Dou, the emperor also sought to avoid wasteful expenditures.
Legends noted that the tax rates were at a ratio of "1 out of 30" and "1 out of 60", corresponding to 3.33% and 1.67%, respectively. Warehouses were so full of grain, that some of it was left to decay.
In a move of lasting importance in 165 BC, Emperor Wen introduced recruitment to the civil service through examinations. Previously, potential officials never sat for any sort of academic examinations. Their names were sent by local officials to the central government based on reputations and abilities, which were sometimes judged subjectively.
EmperorXiaowen was so distraught that he was unable to take in food or water for five days, and subsequently observed a three-year mourning period for her, notwithstanding officials' pleas for him to shorten the mourning period in accordance with rules that Emperor Wen of Han had set.
Also in 493, EmperorXiaowen began the first of a number of campaigns that he would conduct against Southern Qi -- although in the case of this campaign, it was intended to instead allow him to move the capital from Pingcheng south to the Han heartland of Luoyang, to further his sinicization campaign.
EmperorXiaowen went as far as ordering his six younger brothers to demote their current wives to concubine status, and taking the daughters of officials from the five Han clans to be their new wives, an action heavily criticized by historians.
Posthumous names in China and Vietnam were given to honor lifetime accomplishments of many people who were not related to the emperor, for example to the successful courtiers.
The practice was revived in the Han Dynasty after the demise of the Qin Empire.
Starting with EmperorXiaowen of HanChina (more commonly "Emperor Wen"), every single Hanemperor, except the first one of the Eastern Han Dynasty, has the character of "filial" (孝 xiào) at the beginning of his posthumous names.