Many millennia ago, a colony ship, the Cortes, crashed on a planet in the Epsilon Eridani system, Eridani prime. They did not know where they came from, they did know basic things though, very vaguely who each other was, they knew some English, so they could communicate, and they knew they were called humans. The colony grew, they warded off invasion, met galxthorican scouts, used galxthorican technology to build starships, they built extraction facilities on Eridani minor, a gas giant. The Eridanian humans defeated the zezites of the Alpha Centuri system, and colonized Nado, they expanded to Londor, Burrus, Follon, King Dirod, Alsara, Princess Thee, and many other planets and systems. When humans of Earth finally invented hyperdrive, they flew to the nearest star Alpha Centuri, and found, not an uninhabited planet or aliens, but humans, this caused global confusion on Earth, a massive, interstellar civilization of humans had existed while Earth humans had been making weapons out of stone. The answer to this is still unknown, extensive research has been put into it.