[quote=@Shorticus]
In the case of empires knowing each other:

As the Namilee never really had an empire and I assume their territory is somewhere around the border of X'cor space, I'm going to assume people might know OF them, and they might know OF other species, but they're relatively isolated historically (sans from a race they uplifted - which probably got eaten by the X'cor) and maybe exploring civilizations.
[/quote]

Oh yes, the Namilee should be an exception to that. I imagine that most people they meet will either have never heard of them, or only heard vague rumors of ex-slaves wondering the galaxy. Namilee will probably be rather new to everyone.

I was mainly regarding full nations, not small groups of ex-slaves who rarely ever left their homeworld.

EDIT: Although, if you want, you could have met some of the nations. I would prefer you to have never met the Xim, however, as I have something planned that requires the Xim having no knowledge of the Namilee or their genes (I was tempted to say "technology", but then I remembered that they Xim don't give two shits about technology compared to how much they care about biology :lol)