There are so many surnames in Japan, but the emperor has no surnames. Emperor Akihito and Emperor Hirohito can't say their surnames. The Japanese believe that the emperor is not a person, but a god, and God has no surname. The emperor has no surname, and neither does the prince, grandson, daughter, brother or aunt. Generally, women will change their husband's surname after marriage, but civilians still use their maiden name when they marry the royal family. Wen Ren's wife Chuan Dao Kiko's surname is Chuan Dao, which is her maiden name.
In ancient times, only the nobles in Japan were famous for their surnames, and their so-called surnames were different from what we understood.
At the end of the 4th century AD, the Japanese Yamato court unified many small countries in the southern part of the Japanese archipelago into one country, and its political rule was based on the surname system. A group headed by the great monarch (later emperor) of the Yamato court, which controls the central government and establishes blood relations with the kings of small countries affiliated to the court, is called "history", and a "history" is also an aristocratic family.
Some surnames come from official positions, some from place names of residence and ruling places, some from god names, and some from skills. For example, those who live in Izumo country are called "Izumo family" and those who do sacrificial work are called "taboo family". The Wang family, who held the supreme power of the Yamato court, was the most powerful family at that time.
Later, the Wang family gave many families belonging to the imperial court "surnames" according to their closeness, blood relationship and contribution. This "surname" is not a real surname, but it is a title of status, family status and position, similar to a title. At that time, there were about 30 surnames, among which "Sean", "Jun" and "Zhi" were the most powerful surnames for the royal family and prominent nobles.
Due to population growth, a big family has many branches. These branches gave themselves a word seedling. "Miao character" means bud branch, which is a branch from one's own home. For example, Fujiwara is a big family. After the split, Fujiwara, who lived near Jiangguo, took the initials of "near Jiangguo" and "Fujiwara" and called it "Kondo". Fujiwara, who lives in Yi Shi, Yuanjiang and Kaga, is called Ito, Endo and Kato. In the eighth year of Meiji, people who had never had a surname wanted to touch the word "Fujita" when taking their own surname, so Fujita, Fujimoto, Fujii, Fujiyama, Fujikawa and Fujita were born.
So at this time, the surname can represent a part of the family blood relationship, but the surname only represents the family status, and the Miao word represents a new branch, but at this time, the surname, surname and Miao word are only available to nobles.
By the middle of the seventh century, during the period of Dahua innovation, hereditary titles were abolished, which meant that surnames were meaningless, surnames and surnames were confused, and some of them became surnames that have been passed down to this day. At this time, surnames are still exclusive to nobles. In the19th century, surnames were limited to warriors, tycoons and powerful people in the village. These people apply to the authorities and get special permission to have surnames. It is a great honor to "bring a knife and a name". The so-called "sword" means having a surname, and ordinary people only have a first name and no surname.