According to the "Shāhnāma" of the poet Firdausī, Jamshid was the fourth king of the world. He had command over all the angels and demons of the world, and was both king and high priest of Hormozd . He was responsible for a great many inventions that made life more secure for his people: the manufacture of armor and weapons, the weaving and dyeing of clothes of linen, silk and wool, the building of houses of brick, the mining of jewels and precious metals, the making of perfumes and wine, the art of medicine, the navigation of the waters of the world in sailing ships. 