He didn't know who he was, what he was, or where he came from. He only knew how to exist.
A reality where galaxies billions of light years away can be reached in the space of a few days, where technology has grown so advanced that contact with other worlds has been made, where we have discovered that there is life among the stars. Civilizations created by sentient beings.
The year is 663952 on our planet. Contact was made with Earth three years ago, and we have reached a trade agreement with the Humans that is flourishing. Our world continues to prosper.
In the year of 663960, we disappeared. No one knows what happened to our race, our planet is no longer in orbit around our suns. None of us lived to say why. We're simply...gone. The only proof of our existance is the records of our alliances with Earth and other distant worlds. And so we became legend.