The Empyrean Age novel:
"EVE is the name of an ancient wormhole in the New Eden System" she explained, "It collapsed thousands of years ago, but not before our ancestors had already gone through. They were trapped here... cut off from their origins, a place we think they called 'Terra'. Whether that was one system or a cluster, nobody can say."
This is common enough knowledge for reasonably ordinary people (the character speaking is Gable, a Caldari medic) to know.
Detailed knowledge of Earth itself, I'd be a bit more sceptical about, as several groups were NOT from Earth (directly).
The ancestors of all the Athran ethnic groups (Amarr, Udorian, Khanid, Takmahl), came from Soekhiviti.
The ancestors of the Gallente ethnic group came from Tau Ceti, not France on Earth.
The ancestors of the Caldari were from an unspecified mega-corporation (quite possibly interstellar in nature).
The Yan Jung were from a Chinese-derived ethnic group of unspecified origin (Earth itself or intermediate).
This would tend to make for vague descriptions and half-remembered things very mixed together. Tau Ceti is a different colour of star from Sol, for example.