Li Quan
After the Han dynasty, the crossbow lost favor until it experienced a mild resurgence during the Tang dynasty, under which the ideal expeditionary army of 20,000 included 2,200 archers and 2,000 crossbowmen. Li Jing and Li Quan prescribed 20 percent of the infantry to be armed with standard crossbows, which could hit the target half the time at a distance of 345 meters, but had an effective range of 225 meters.