In 2367, they attempted to create a subspace weapon to either deter or use against the Enipians in their attacks on Goffan III. The laboratory, in the city of Enika, was encased in molocine, which, when the test failed, prevented a subspace anomaly from spreading further. The entire scientific and military team within the testing area died.
They also had their own battle cruisers.
The authorities let the artisans caste have a wide berth.
- A suzerainty is a controlling government, allowing subordinates to create their own laws, et cetera, controlled by an overarching authority. We assume the Jenchum Suzerainty was based on the Jenchum home world (if there was one) and local branches existed on each inhabited planet, including Goffan III.