[a] These colors, derived from natural pigments, would have been widely available to tlacuiloque of the pre-Conquest and early Colonial period, per the Florentine Codex.Analyzing and translating the still legible glosses, scholar Patrick Johansson Keraudren found them to be place names or short phrases of a 16th century quality.Historian Pablo Escalante also suggested a post-Colonial manufacture, citing the lack of color and simpleness of the humans in the codex.Its material and stylistic composition closely match Peter Martyr d'Anghiera's descriptions of the first codices that arrived from the New World.William Bullock, an English traveler and collector, took the codex under dubious conditions to London and there included it in an exhibition on Mexico on 8 April 1824.[16] Once back in Mexico, the Boturini Codex and the rest of the treasury's collection of antiquities was turned over to the newly-formed National Museum.[20][d] The Azteca agree and the nine tribes set out under the leadership of the four god-bearers, Chimalma, Apanecatl, Cuauhcoatl, and Tezcacoatl, each carrying a tlaquimilolli.[22] The Mexica arrive in the Basin of Mexico at Chapultepec on folio 18, which also depicts the first of the New Fire ceremonies and the invention of the atlatl.The victorious warriors bring the Mexica leader Huitzilihuitl and his daughter Chimalaxoch before the tlatoani of Colhuacan, Coxcox.Coxcox tasks the Mexica with battling the Xochimilco and to return with the ears of slain opponents as proof of the killing.Indexes by the government of New Spain elucidate that folios lost in the early 19th century documented the wars of the Mexica around Chapultepec fought on Coxcox's behalf.