Meiji Restoration refers to the top-down, capitalist, all-round westernization and modernization reform movement carried out by Japan under the background of the impact of western capitalist industrial civilization in the 1960s. This reform began in 1868 when Emperor Meiji established a new government, and the Japanese government carried out modern political reforms and established a constitutional monarchy. Economically, it is necessary to "cultivate and develop industry", learn from European and American technologies and carry out a wave of industrialization; And advocate measures such as "civilization", Europeanization of social life and vigorous development of education. This reform made Japan rank among the world powers and set sail for Japan's modernization, but it also made Japan embark on the militaristic road of foreign aggression and expansion, causing heavy disasters to its Asian neighbors.
19, in June, 645, Emperor Kotoku announced that it would imitate China to establish the year number and named it "Dahua". 645 was the first year of Dahua. In the second year of Dahua (646), on the first day of the first month, Emperor Kotoku issued a new imperial edict and officially started the political reform. This event, also known as the change of the two emperors, was based on the laws and regulations of the Tang Dynasty, taking into account the old Japanese habits, reformed from the economic to the political aspects, stipulated the centralized feudal state system, and announced the contents of the reform by imperial edict. The laws and regulations strictly divided the good and bad identity systems. Large-scale innovation has partially liberated productive forces, perfected Japan's ruling system and laid the direction for Japan's national development, which is of great positive significance.