(aoi umi, sakana tsuri) “blue sea, catching fish”

You might notice that the above characters are a different style to the characters I usually write.
Usually I write calligraphy in kanji, which is a logographic script in which each complex character has a meaning.
The above is in hiragana, which is a syllabary – each character makes a sound, but has no meaning by itself.
Kanji was invented in China, but hiragana is a purely Japanese invention.
It’s often said that there are 2 writing systems which were invented in Japan – hiragana and katakana (also a syllabary).
However… today the above may very well be written “🌊🎣”, so I would like to propose that there are in fact three writing systems which were invented in Japan 🙂