Mangonel has a common myth that it was torsion siege engine such as the ballista or onager which used the tension effect of twisted cords to shoot projectiles but these artillery weapons were only used in the West until the 6-8th centuries.
A common myth surrounding the mangonel is that it was a torsion siege engine such as the ballista or onager which used the tension effect of twisted cords to shoot projectiles. These artillery weapons were only used in the West until the 6-8th centuries, when they were replaced by the traction trebuchet, more commonly known as the mangonel. 
