Abstract
The Mexican version of the Diccionario Universal de Historia y de Geografía —10 volumes published between 1853 and 1856—, is one of the most important academic and typographic collective achievements of the XIXth Century, because of the quantity of information on Mexico that it includes, well researched and exposed by the best scholars of the time. One of the most prominent was young Joaquín García Icazbalceta, who for the first time displayed his absolute dominion of information, registered with good writing and sound judgment. Taking a look on his work for the Diccionario gives us a vision of a rich historiographic and editorial environment, in which García Icazbalceta played an important part.