The emperor is the title of Japanese monarch, the head of state and the symbol of the country. The Emperor is the monarch who has ruled for the longest time in the history of the world (the book records the first 660 years). Because it is considered to be different from ordinary Japanese (in Shinto, the emperor is a descendant of the gods, so he has divinity), the emperor and his family have no surname (known as the emperor in history), and the Japanese Constitution does not give him citizenship. Although the Japanese emperor after Hirohito has completely given up the "divinity" endowed by history, most Japanese still think that the emperor represents the "country". After Japan's defeat, parliamentary democracy was established with the support of the United States. However, in order to comply with Japanese public opinion, the emperor was allowed to remain as a symbolic head of state. 1946, the United States forced Emperor Hirohito to publish the "Declaration on Earth", acknowledging that the Emperor was no different from ordinary people and was just a national symbol popular with the people. The main duties of Japanese emperors in modern times were to appoint prime ministers, approve laws, decrees and treaties, convene the National Assembly, approve the appointment and removal of ministers of state, and attend ceremonial foreign affairs activities and state ceremonies. Recently, the question of whether a woman can become an emperor has aroused heated discussion in Japan. In fact, in Japanese history, there were eight female emperors in the 10 generation, forming a unique era of female emperors. In people's impression, Japan has always been a country that pursues the idea that men are superior to women. However, among the emperors who have continued125th generation in Japan since ancient times, there are10th generation female emperors.