Javelin is a throwing event in track and field. Javelin originated as a hunting tool in early human beings. It is made by grinding and sharpening both ends of bamboo or wood. You can stab or throw. In later generations, it also became a fighting weapon.

Javelin throwing is a complex multi-axis rotating project. Its complete technology is that the gun on the shoulder gains momentum through a pre-run-up and throwing step, and the javelin is thrown over the shoulder through the explosive final force acting on the longitudinal axis. In ancient times, javelin was not only thrown far, but also accurately.