The development of the Uron-Tashra is closely related to the development of Kartazian energy production. Everybody knows that the first Uron Tashra, called "Mahontes" was developed on 1583 by a couple of Zaitsan engineers named Mykan Ufron and Eleya Tashra. However, their discovery was only possible because of the technological framework left by Kryss Erezgath and his famed clockworks. Erezgath's car, built on 1553, was moved by a small metal cylinder which contained an enchanted jewel that continually created air. The pressure of the air would move the car forward. That was the first magically powered energy tool, called a "Constant Pressure Device".