Its written form consists of square and rectangular letters. The Romulan spoken language had three dialects, and was difficult to distinguish from the Vulcan language to those not proficient in xenolinguistics. (Star Trek) In 2370, Jean-Luc Picard identified an artifact recovered from Calder II as being from Vulcan, because the alphabet and symbology of the glyphs and pictograms on the artifact was much more consistent with early Vulcan than Romulan. (TNG: "Gambit, Part II" )