4406 entries. 94 themes. Last updated December 26, 2016.

The National Library of Medicine Introduces Medical Subject Headings (MeSH) (1960)

In 1960 the National Library of Medicine introduced Medical Subject Headings (MeSH), a comprehensive controlled vocabulary for the purpose of indexing journal articles and books in the life sciences. MeSH serves as a thesaurus that facilitates searching; it is used by the MEDLINE/PubMed article database and by NLM's catalog of book holdings.