The way in which archaeological information is obtained, from the traditional processes to automatic capture and graphic computation, allows the establishment of spatial relations, the integration of environmental factors from the past, and, thus, the determination of the social characteristics of the historic period under study. By applying new technology methods to the analysis of building works carried out during the Iberian Peninsular Invasions, which constituted three lines of defense of

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... sbon against the Napoleonic troops, a virtual three-dimensional model can be constructed based on existing places and on the determination of blind-spots in the fields of vision between the watch-towers. The future of this new methodology for the consideration of historical investigation is closely linked to the development of Artificial Intelligence (AI) models, which allow new answers to new questions. was happening. All of factors led to the defeat of a large, experienced, and well-equipped army. General Technical Information In fact, although it is theoretically possible to bring about the building of 152 forts in only one year, on the basis of five hours of labor per man to complete one meter in length of wall (far short of the numbers shown for those involved in this process, because after a certain point, it becomes impossible to manage construction work because of the presence of too many workers on the same site), there are other factors which had a bearing on the time needed for the building of a structure, such as the availability of materials (limestone) and equipment, as well as accessibility to the sites, which in this case was quite reduced for reasons of military strategy (i.e., dominant but discreet points in the landscape). Even recognizing the possibility that this could have happened, that is, that the Linhas de Torres 1 , as these defenses are known, were built in only one year, it is impossible that the movement in the area, whether related to the transport of materials (huge ashlars on ox-carts), or to the distance traveled (from the quarry to the site), or to the construction itself (panels of concentric walls, of huge length, alternated with ditches (successively repeated until the stabilization of the containment-normally three), would not arouse attention, thus canceling out any element of surprise, fundamental to the victory achieved. These considerations lead us, therefore, to raise the question as to whom the construction of the Linhas de Torres should be attributed.