The Nāṣirī Generations 287.1.5

287.1.5

and each catapult was so constructed as to be capable of being separated into five or seven parts, and easily put together again. These catapults and mangonels were brought from Khita-e on carts into Turkistan, under the direction of skilful engineers and mechanists, but there is no evidence whatever to show that they had any knowledge of gunpowder, but quite the contrary.