The "Tira de la Peregrinación" (Pilgrimage Strip) is a codex made on amate paper, measuring 5.49 meters long, by 25.6 cm high, which is folded in the form of a screen to form 22 folios or sheets, the last of which only measures 11.4 cm wide. The Tira, also known as Códice Boturini, it was probably made in Mexico City around 1540, and is currently sheltered in the Biblioteca Nacional de Antropología e Historia "Dr. Eusebio Dávalos Hurtado", where it is cataloged with the symbol 35-38. Through drawings and glyphs of pre-Hispanic tradition, the codex narrates the journey of the Mexica people from their place of origin in Aztlan, from where they left in the year 1 Técpatl (1064), until they reached Chapoltépec, in the Basin of Mexico, where they were defeated by a coalition of peoples in the year 2 Ácatl (1299), and then taken in captivity to the domains of Colhuacan. From this last settlement, the Mexica were expelled, and went to take refuge in the islands of the western shore of Lake Tetzcoco, where in the year 2 Calli (1325) founded their city of Mexico Tenochtitlan, the current Mexico City. This is a facsimile edition of the Tira de la Peregrinación, with comments and maps prepared by scholar Rafael Tena, emeritus researcher of INAH, attached to the Directorate of Ethnohistory.