> Like Japan’s kanji alphabet, the oldest writing system in the world is syllabic.
I think they have that mixed up with hiragana and katakana. Kanji are Chinese characters.
replies(2):
https://www.merriam-webster.com/dictionary/alphabet
> al·pha·bet
> a set of letters or other characters with which one or more languages are written especially if arranged in a customary order
And then it shows an Alphabet Table beginning with Hebrew and Arabic.