In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.

This dynasty continued a system in which one month out of every five was given to military service by those who lived within 500 li of the capital; that was the Fubing system. A Buddhist savings bank stocked by donations was liquidated during this dynasty and was called the "Inexhaustible Treasury."  Governors known as "jiedushi" first sprang up during this period under emperor (*) Xuanzong. A major insurrection during this dynasty ended after Shi Chaoyi killed himself. This dynasty was  interrupted by the second Zhou dynasty when Ruizong announced that his mother, Wu Zetian, would be  emperor. For 10 points, name this Chinese dynasty that lasted from 618 until 907 and faced the An  Lushan rebellion.
History

A tree can be seen in the background of this work through a window bisected by a stone column. Beneath the window lies a series of chests, one of which is being searched through by a child in white. The childs caretaker, carrying a large gold and blue garment, looks after the child while on the right a small brown and white dog sleeps peacefully on a couch. Tapestries line the walls near the chests and green and beige tiles line the floor, and a green curtain obscures the back left portion of the room. On a red couch in front of the curtain rests the title character, who holds pink flowers in her hand as she stares at the viewer. For 10 points, name this painting by Titian.
Fine Arts

This element extracted in the Frasch process is bonded to a hydrogen atom in a functional group once called a mercaptan. In nature, this element is most commonly found in an eight atom ring. This element is only found in the amino acids methionine and cysteine; in cysteine this element forms a type of bridge that links polypeptide chains. A compound containing this element bonded to two hydrogen atoms is notable for smelling like rotten eggs. For 10 points, name this element found below oxygen on the periodic table with chemical symbol S.

Science