The five early Nahuatl documents known as Anales de Tlatelolco dealing with Aztec migration toward the Valley of Mexico, the dynasties of Tenochtitlan and Tlatelolco and the Tepanec capital Azcapotzalco, and the Spanish conquest, are transcribed precisely from the original manuscripts (today in the French Bibliothèque Nacional) and translated accurately into Spanish. In a Spanish introduction the author investigates the relation of the different manuscripts, their structure and scribes, and time of origin of this primary source. In appendices the reports are compared thematically, the chronology of Aztec rulers and migration sites are listed.