The Anales de Tlatelolco (Annals of Tlatelolco) is a codex manuscript written in Nahuatl, using Latin characters, by anonymous Aztec authors. The text has no pictorial content. Although there is an assertion that the text was a copy of one written in 1528 in Tlatelolco, only seven years after the fall of the Aztec Empire, James Lockhart argues that there is no evidence for this early date of composition, based on internal evidence of the text. However, he supports the contention that this is an authentic conquest account, arguing that it was composed about 20 years after the conquest in the 1540s, and contemporaneous with the Cuernavaca censuses. Unlike the Florentine Codex and its account of the conquest of Mexico, the Annals of Tlatelolco remained in indigenous hands, providing authentic