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.

Under the ruler Water Mask, this polity suffered a severe defeat at the hands of the Tarascan empire, and a large portion of its agricultural production came from "floating gardens." It had a system of universal education with commoners sent to the telpohcalli (tel-poch-CAL-li), and nobility to the calmecac (cal-ME-cac), and it often used the murder of its pochteca (poch-TE-ca) merchants as an excuse for war. Described at length in the Florentine Codex of Bernardino de Sahagun., the ruler of one of its three ruling cities, Fasting Coyote, was famed as a poet in the Nahuatl (NA-wa-tl) language. A series of defeats let to the poisoning of Tizoc, and to regain credibility with his vassals, his successor Ahuitzotl (a-WI-tzo-tl) sacrificed 80,000 captives during the re-dedication of one of the main temples. For 10 points, identify this empire last ruled by Mocteuczoma (mo-tequ-SO-ma) Xocoyotl (sho-CO-yo-tl) from its capital at Tenochtitlan.
History