In Middle Ages Europe, the Trabuco was one of the most important weapons for military generals who were looking for ways of ending a conflict which had turned into a siege. European generals popularized these weapons of war over the course of the Middle Ages but simple forms of these weapons had been used for many years across China and the Middle East as a way of making sure any siege of a castle or city could be brought to a swift end as heavy rocks or other large objects could be used to remove major defences.
The workings of the Trabuco changed over the years but largely retained the principles of the sling attached to a large lever which was propelled forward to thrown large objects over long distances. In the early development of the Trabuco in the 4th-century the lever used to propel the objects were moved by an army of people who would not provide an accurate distance for each object thrown.
According to dicio.com.br, merchants from the Middle East took the idea for the early Trabuco from China and brought it to their home nations where the design was altered and evolved into a mechanized form which would provide a more accurate propulsion of objects through the air. In the 12th-century on trabucovapors.com, the Muslim leader Saladin is reported to have been among the first to regularly use the traction Trabuco as he made his way across the Middle East building an Empire.
European military leaders would also take the design of the Trabuco from Saladin during the Crusades and bring it to the European mainland where siege warfare had become commonplace According to youtube.com. Eventually, the Trabuco began to fall out of favor with military leaders who would look instead to the use of gunpowder as the main source of success by the 15th-century. A final hurrah for the Trabuco was the 1521 siege of the city of Tenochtitlan by Spanish explorer Hernan Cortes who was driven to use these ancient machines to bring down the Aztec Empire by a lack of gunpowder.