Hur'q symbol.
The Hur'q was the name given by the Klingons to a now-extinct species that flourished approximately a thousand years ago. They are most noted for invading the Klingon homeworld of Qo'noS, plundering whatever they could and destroying the rest. Amongst the most valuable treasures stolen by the Hur'q was the revered Sword of Kahless. The Hur'q appear to have originated from the Gamma Quadrant. (DS9: "The Sword of Kahless")
The Hur'q invasion was one of the first attacks that threatened the very existence of the Klingon Empire. It was the last time the Empire was threatened on such a massive scale before a mutagenic virus in 2154. (ENT: Affliction)
In 2372, some ruins of their civilization were uncovered in the Gamma Quadrant by a Vulcan survey team. (DS9: "The Sword of Kahless")
- It is possible the Hur'q knew of the existence of the Bajoran wormhole long before it was discovered by the Federation.
- The Hur'q also feature in the video game Star Trek: Invasion.
In Klingonese, hur'q is a word that means "outsider." (DS9: "The Sword of Kahless")