Kanji is believed to be introduced by Korea, and Katakana is originated from Korean Buddhism monks' scripting system for representing grammatical particle of Ko

Kanji is believed to be introduced by Korea, and Katakana is originated from Korean Buddhism monks' scripting system for representing grammatical particle of Korean language in Korean Silla kingdom period. Please original writer, either don't say anything about history if you don't know actual history or do better research.