El árbol y la raíz

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This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute...

"Inventario de los libros que han tenido ingreso en la secretaría de la Real academía," 1922-29, with v. 83, 85, 87, 89, 91-92, 96, 99.

Henri Pirenne redactó este material en una prisión alemana durante la primera Guerra Mundial. Sin bibliotecas, privado de sus libros y notas, carente de elementos que le despejaran el camino, realizó un brillante esfuerzo de memoria y de concentración de pensamiento para reflexionar sobre sus conocimientos, sistematizarlos y recoger a grandes rasgos el proceso evolutivo de todo un periodo histórico de la vida humana.