Text A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Optica Promota Subject The topic of the resource Optics Description An account of the resource The Optica Promota is the major contribution by James Gregory. It included details of his design of the Gregorian telescope.