Paris Nanterre University (French: University Paris Nanterre), formerly called "Paris X Nanterre" and more recently "University Paris Ouest Nanterre La Defense", is a French university in the Academy of Versailles. It is one of the most prestigious French universities, mainly in the areas of law, humanities, political science, social sciences and economics. It is one of the thirteen successor universities of the University of Paris. It is located in the western suburb of Nanterre, in the La Defense area, the business district of Paris. The university is commonly referred to as Nanterre was built in the 1960s on the outskirts of Paris as an extension of the Sorbonne. It was set up as an independent university in December 1970. Based on the American Model, it was created as a campus (as opposed to the old French universities which were smaller and integrated with the city in which they were located).