https://en.m.wikipedia.org/wiki/Kunyu_Wanguo_Quantu
There are Japanese kanjis because this version is a copy of the original map (look at the article for more details)
https://en.m.wikipedia.org/wiki/Kunyu_Wanguo_Quantu
There are Japanese kanjis because this version is a copy of the original map (look at the article for more details)
That’s extremely impressive! Did they collect maps from all around the world?