Trillius Prime

[Dave]

I need your ideas on something...

The Trill Home-world, or Trillius Prime as Travis Mayweather called it, was well known to Traders at the time of Enterprise and likely to be close in proximity to the Earth/Sol system.

During the time of TOS and Kirk's Enterprise, Emory Dax visited Earth to take part in a gymnastics competition and met Dr. McCoy.

Do you think Trillius Prime was a member of the Federation at that early stage? Could it be an original signatory to the articles of the FoP?

There is a long discussion on this at Wikipedia. Curzon Dax was a Federation Ambassador, which tends to support the fact that they were members at that time. Many Starfleet officers were Trills in DS9. On the other hand, many Starfleet officers did not come from Federation planets, for example, Nog from Feringar, Tasha Yar from Turkana IV, and various different Bajorans with attitude. Conversely, Beverley Crusher and the rest of the Enterprise-D crew found the Trill to be usual and rather exotic. She seemed to have never studied them at Starfleet Medical.

The Trill Science Ministry was one of the premiere institutes of science in the Federation, on par with the Vulcan Science Academy. It was a leader in the field of spatial and subspace anomalies in the 2370s, in particular the study of wormholes. Notable scientists at the Ministry included Lenara Kahn, Hanor Pren, and Bejal Otner, all of whom visited Deep Space 9 in 2372 to conduct experiments in the creation of artificial wormholes.

But I am specifically interested in the period after the Khitomer Accords, around the time of the launch of the Enterprise-B. Was it a Federation planet then?