It is impossible to verify when the utensil was created and who is responsible, but it is common knowledge that China is home to chopsticks. In ancient books, chopsticks were called "zhu," showing that bamboo or wood were the first products used in production.
Why was it changed to "kuaizi"? It is because the pronunciation of "zhu" is the same as another word which contains the meanings of "to stop," "to end" and is considered inauspicious. To act in contravention, it was changed to “kuai” with the pronunciation of the word meaning "going as quickly as flying."
