Lu Ban was born in the 13th year of Zhou Wangjing (507 BC) and died in the 25th year of Zhou Pingjing (444 BC). He lived in the late Spring and Autumn Period and the early Warring States Period, and was born into a family of artisans for generations. He participated in many civil engineering jobs with his family since childhood, gradually mastered the skills of productive labor and accumulated rich practical experience. At the turn of the Spring and Autumn Period and the Warring States Period, social changes gave craftsmen some freedom and opportunities to display their talents. In this case, Lu Ban made some inventions in machinery, civil engineering and manual technology. After about 450 BC, he came to Chu from Lu to help Chu make weapons. He once created his own ladder to attack the state of Song, which was stopped by Mozi. Mozi advocated making practical production tools and opposed making weapons for war. Lu Ban accepted this idea.
A famous inventor in history, I once talked about his debate with Mozi in a lecture room.