The Database of Neo-Sumerian Texts (or BDTNS, its acronym in Spanish) is a searchable electronic corpus of Neo-Sumerian administrative cuneiform tablets dated to the 21st century B.C. During this period, the kings of the Third Dynasty of Ur built an empire in Mesopotamia managed by a complex bureaucracy that produced an unprecedented volume of written documentation. It is estimated that museums and private collections all over the world hold at least 120,000 cuneiform tablets from this period, to which should be added an indeterminate number of documents kept in the Iraq Museum. Consequently, BDTNS was conceived by Manuel Molina (CSIC) in order to manage this enormous amount of documentation (…) The work on BDTNS began, therefore, in 1996 at the Instituto de Filología (now Instituto de Lenguas y Culturas del Mediterráneo y Oriente Próximo) of the Consejo Superior de Investigaciones Científicas (CSIC), Madrid. Six years later, in 2002, it appeared online.