Around the 5th century, Chinese characters spread from China to Japan. The Japanese created Hiragana and Katakana based on Chinese characters, but slightly changed their glyphs to adapt to writing Japanese. For example, our cursive script is "An". People who know a little about calligraphy can also understand Japanese writing well. Learning Japanese recommends reading the book Standard Japanese. The first volume of Standard Japanese specifically introduces Japanese writing methods and the origin of Chinese characters Hiragana and Katakana, which can be used as a reference.