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In this paper we retrieve and classify scientific and technical news from the Official Gazette of the Province of Badajoz (Spain), of the first semester of 1880. We have classified them with the UNESCO International Nomenclature for Science and Technology. Once the news has been sorted and counted, we have tabulated the results and studied the resulting matrix using network analysis, to show the trends of Science and Technology at this time, and the relationships between different areas. In conclusion, we can state that the analysis of the network of scientific and technical information is a valid method to study the information retrieved through different historical researches. [ABSTRACT FROM AUTHOR]