http://purl.org/dc/elements/1.1/subject
Property dc:subject

Typically, the subject will be represented using keywords, key phrases, or classification codes. Recommended best practice is to use a controlled vocabulary. To describe the spatial or temporal topic of the resource, use the Coverage element.

http://dublincore.org/usage/terms/history/#subject-006

1999-07-02

2008-01-14

rdf:Property

The topic of the resource.

dc:

Subject

A second property with the same name as this property has been declared in the dcterms: namespace (http://purl.org/dc/terms/). See the Introduction to the document "DCMI Metadata Terms" (http://dublincore.org/documents/dcmi-terms/) for an explanation.