Tumbas sin nombre

1898 no fue únicamente la gran victoria de la nueva potencia imperialista que se representaba en los Estados Unidos, era también el derrumbe del vetusto y decadente colonialismo español. Comenzaba de manera más que significativa el nacimiento del nuevo siglo XX latinoamericano.

Panorámica general del mundo árabe e islámico en sus diversos aspectos a través de temas significativos como historia (al-Andalus), política contemporánea (conflicto árabe-israelí), sociedad (fundamentalismo, inmigración).

This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book.

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...