Breve reseña histórica de la CDU en España

THE UNIVERSAL DECIMAL CLASSIFICATION HAS BEEN THE SYSTEM IMPOSED UPON ALL STA TE- RUN LIBRARIES IN SPAIN. SINCE 1895, THE YEAR IN WHICH THE FIRST INTERNATIONAL BIBLIOGRAPHY CONFERENCE WAS HELD, AND WHEN THE DECIMAL SYSTEM BEGAN TO BE INTRODUCED MAIN LY IN EUROPEAN CIRCLES; IT ALSO STARTED TO BE DIVULGED IN SPAIN. THE INTRODUCTION OF THE UDC IN SPAIN WAS SUBJECT TO NUMEROUS DIFFICULTIES AND AT FIRST WAS THE WORK OF INDIVIDUAL LIBRARIANS, THOUGH LATER ON IT WOULD HAVE THE SUPPORT OF THE SPANISH ADMINISTRATION. IT WAS IN 1939 WHEN THE UDC WAS OFFICIALLY IMPOSED ON ALL SPANISH LIBRARIES. FINALLY, IN 1989, IT WAS DE CLARED NON- OBLIGATORY FOR SPANISH LIBRARIANS TO UTILIZE THE UDC FOR THE CLASSIFICTION OF ARCHIVES AND CATALOGUES.