In the historical MSS. we have the year-signs in order accompanied by certain figures symbolical of important events. A temple in flames with a place-name attached signifies the conquest of a town; the sign olin, an earthquake; a smoking star, a comet; and so forth. In Fig. 12 appears a small portion of the manuscript known as Telleriano-Remensis; two year-dates are shown, of which the first, 7. tochtli, is accompanied by two figures, a mummy-pack with the name of Tizoc, and a seated man with the name of Auitzotl. This signifies the death of the king Tizoc, and the enthronement of his successor. Accompanying the next year-date, 8. acatl, is a picture of the great temple to Uitzilopochtli, beneath which is a smoking fire-stick, and the name-sign of Tenochtitlan. The group signifies the dedication of the great temple at Mexico, since new fire was always made at the opening of a newly-constructed building. At the side are two figures clad in the livery of prisoners destined to the gladiatorial stone, each with his name; these represent two important prisoners sacrificed on that occasion, and below them is a number, reading 20,000, the number of the victims sacrificed during the inaugural ceremonies. The nature of the calendrical manuscripts has been explained in chapter III, and it will therefore not be necessary to say more about them, except that most, if not all, of the surviving examples seem not to be pure Aztec work. Some are rather in Zapotec style, while others may have been produced at Teotitlan or Tehuacan on the Mixtec border, where the priests were especially skilled in calendrical lore; of others again the place of origin may be Chiapas. Of great interest are the tribute-lists, of which the best, known as Codex Mendoza, gives the imperial revenue in the time of Montecuzoma, together with a list of the tributary towns; the glyphs, in Fig. 18, p. 118, are taken from this manuscript. Again, the ownership of land was carefully noted on maps, territory belonging to the king, the nobles, and the calpulli (or clans) being marked in different colours; and plans of towns are also found, that shown in Fig. 13 in all probability representing the palace at Tezcoco. Similar documents were prepared for legal procedure, and at the landing of the Spaniards manuscripts were taken to Montecuzoma on which were carefully noted the portraits of the leaders, together with pictures of ships, horses, dogs and cannon. [Illustration: FIG. 13.--Plan of the palace at Tezcoco. (_Humboldt MSS., Berlin_)]