Source Provenance of Pre-Historic Granitic Grindstones: The Case Study of the Cogotas I Archaeological Site of Arroyo Mucientes/San Lázaro (Castronuño, Valladolid) and a Proposal on the General Methodological Flow Process

The occurrence of hand grindstones at the Cogotas I archaeological sites is considered to be a common feature. Given that a distant-provenance raw material is frequently involved, determination of its source is a basic factor in the search for a better understanding of resource management and for any Political Economy approach. To progress in these directions an overall study should be planned, using selected grindstones with a view to covering diverse sub-zones of the Cogotas I dispersal area, especially because of its considerable distance from the granite basement source. Such a study may today includes diverse analytical procedures combining successive geographic, petrographic, mineralogical and geochemical criteria. To check the plausibility of the proposed methodology, a preliminary test has been carried out on two granite grindstones, obtained at the archaeological excavation at the Castronuño (Valladolid) Cogotian site, which is fifty km away from an inferred source area that was presumably located at Peñausende (Zamora). The result obtained validates the proposed operational process, yielding a generalizable knowledge to other similar situations.

Lorenzo Luzuriaga and the Challenge of Global Education

This article inquires into a neglected but crucial feature of the works of Lorenzo Luzuriaga: his analysis and criticism of the processes of internationalisation in education which marked the post- Second World War period and which coincided with his long Argentine exile. In particular, the article analyses – through a discussion of his initial appreciation and following criticisms in regard to UNESCO’s normative guidelines and educative practices – the philosophical premises and the political implications of his last educative proposals. These will be shown to be conceived in tight connection and continuity with his preceding works. Moreover, this investigation will permit to recognize the remarkable contribution he offered to the enhancement of José Ortega y Gasset’s pedagogical theory within a changed political context characterised by a unique attempt of defining and institutionalising new values for a global education aimed to promote world peace.A paradigmatic historical event that still grounds the current debate on the nature and purposes of citizenship education and in which the active, social and political education proposed by Luzuriaga still constitutes an interesting critical reference