[quote=@pugbutter]
Cool. And how advanced was the technology that we're now dredging up/rediscovering?
[/quote]

Late space-age transhumanism with a dash of Roadside Picnic and interstellar level civilization tech. The Roadside Picnic analogy, if you who haven't read the book, is essentially people finding alien trash on the sidewalk and repurposing them for other uses. It's the metaphorical equivalent of finding a roomba and repurposing it as a bomb detector.