Inter-stellar Ethnology was a course taught at Starfleet Academy.

In 2285, the course instructor was Commander D. Gabrielle. The course and its instructor were listed on a directory placard located on the second level of a Starfleet Training Command building. (Star Trek II: The Wrath of Khan, set artwork)

This course was only mentioned in writing.
The placard was sold on It's A Wrap! sale and auction for US$31.99. [1]

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