Honra, agua y pan

From the first crude stone tools used by man two-and-a-half million years ago up to the early medieval period, this eye-opening journey through human innovations draws on modern science and the latest research to explore some of history's most fascinating inventions. Beginning with the basic technologies of stone and fire, bone and wood, the survey moves on to answer such fundamental questions as How and where did agriculture evolve? and How did Romans and others heat and plumb their dwellings? This unique guide to some of humanity's most remarkable inventions is a testimony to the brilliant...

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...

Este libro es una lectura rápida y concisa de los eventos ocurridos en la Primera Guerra Mundial. Escrita en un lenguaje sencillo y ameno para el lector, ayudará en la comprensión de los hechos y participantes principales.

Ningún otro periodo de la historia colombiana del siglo XX muestra el volumen de realizaciones, en todos los campos correspondientes a la acción del Estado, como la llamada República Liberal (1930-1946): fueron suficientes dieciséis años para dejar una huella profunda en la vida política, social y cultural del país. Este libro se centra en dos campos en los que el liberalismo mostró la mayor creatividad, a saber: la cultura y los problemas sociales.