Who invented Mo Dou?

The inventor of Mo Dou was Lu Ban. Lu Ban was a famous craftsman in the Spring and Autumn Period. His inventions include practical tools, such as saws, planers and Mo Dou. Mo Dou is a tool for carpenters to play with threads. Luban's Mo Dou is not limited to bouncing lines, but also has a function of measuring straight lines on the ground, which is very important at the construction site at that time. Luban was an outstanding craftsman and inventor of handicraft industry in ancient China, and was regarded as the "founder" by folk craftsmen.