First, the area controlled by the dynasties were significantly larger after the Tang Dynasty because of the military campaigns imposed by its early rulers. Second, map makers during the Tang dynasty also made several advancements in creating maps with grids and a graduated scale.
B) Work for other. Sometimes people do it their selves but most of the time people work for others for quick money
By improving they are Machiavelli, who along with Hobbes, helped to generate the tradition of political realism. Hobbes was a scholar, whose aim was to put politics onto a scientific footing; he therefore employed a strict logical approach to his work. In contrast, Machiavelli was a man of action; he worked, primarily, as a civil servant of the Florentine Republic. He drew conclusions, having made observations of how people actually behaved rather than the way they ought to behave in a hypothetical and intangible world.
