Piotr isn't as well-versed in Nexus history, or even Earth history, as most galactics -- he has the benefits of growing up in that narrow gap between the end of the Time of Isolation and the beginning of the Occupation, but academia has never been high priority of his. The exact details of man's earliest colonization attempts are not among his education.

"The mass effect?" Piotr's brows draw together. He doesn't know much wormhole science, but it does sound like some kind of science. But it's the war part that grabs him. "The First Contact War...you mean to say you've encountered sentient life aside from humans?"