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What was once a romantic race for the skies at the turn of the century has become, now at the threshold of the new Millennium, a fierce commercial competition where no contestant can afford to lose ground. Catastrofes aereas is a journey through the most resonant and disastrous accidents in the history of commercial aviation, where the account of the events, experts' investigations, technical explanations, and the testimonies of those who lived or witnessed it are but the beginning of the story. There is also the political, economic and social context in which they occurred, and the outside...

La economia y el comercio; la indumentaria y los usos; la organizacion social, politica y sacerdotal; la literatura y la escritura; la medicina; la idea del tiempo y la historia; las matematicas, la astronomia y la cronologia; la religion, la cosmologia y la cosmogonia; lo ritual; la arquitectura, la pintura y la escultura... el universo Maya, simplemente.

Compradores, deudores y vendedores activos en los campos de la artesanía y la industria, los carniceros de los siglos XIII-XVI de las coronas de Aragón y Castilla y del sur de Francia (Languedoc y Provenza), que alimentaban y a veces dominaban los mercados (de la piel, el cuero, la lana, el hierro...), fueron nexos comerciales entre la ciudad y el campo, donde construyeron sus redes. Fueron también miembros de las elites urbanas y rurales y actores de las políticas fiscales, en particular a través de la explotación de los impuestos indirectos aplicados a los productos de consumo. En los ...