Task: Text Categorization
Input (English): It was formed by the union of Chincasuyu, Antisuyu, Kuntisuyu, and Qullasuyu to form the Tahuantinsuyu, or The Four United Provinces, under the rule of Pachacuti. A later leader, Huayna Capac, divided this empire after his death among his two successors, one of whom was captured and executed by Pizarro despite paying a room full of gold as ransom. That last leader was Atahualpa. For 10 points, identify this empire in South America with capital at Cusco.
Output (English): History