For Japan, I believe most of us are still relatively familiar with it, but in ancient times, did Japan always call this name? In fact, this is not the case, the name Of Japan is actually more of a modern name, but before that, they still have other names.

The earliest contact between Japan and our country should be traced back to the Han Dynasty, when Japan specially sent its own emissaries to the Han Dynasty to express its submission to the Han Dynasty, and the envoys from the Eastern Han Guangwu Emperor Liu Xiu saw that they were thin and low, so they were canonized as Uighurs, and their kings were naturally called Wu Kings by us.
Later, a Yamato kingdom appeared within Japan, and quickly unified Japan, that is, in that era, Japan began to appear emperor, and it has been used until modern times, and the Japanese people have since called themselves Yamato Kingdom, a small island country, calling itself Yamato Country, and you can also see the dangers in its heart.
The Japanese officially changed their country name to Japan after the Tang Dynasty, because at that time, the Japanese also felt that their word was too ugly, so they changed it to Japan!
And this name has also been liked by the emperor, because the meaning is very good, Japan in the east of the Tang Dynasty, taking the name of Japan, meaning the sunrise of the eastern sun of the original meaning, so it was also fixed.