Terra
From The Stargate Omnipedia
Ancient term for Earth, on which the advanced species once lived. The phrase "Terra Atlantus" designated "Earth: Atlantus" -- or, more specifically, the small outpost left behind by the Ancients when they left with the city of Atlantis between five and ten million years ago.
See also: Earth
DETAILS
HOME TO - Humans
FIRST APPEARED - "Stargate" the Movie
KEY EPISODE
Lost City, Part 2 - While integrated into an Ancient console on Proclarush, O'Neill says the phrase "Terra Atlantus" -- in reference to Earth, the previous location of the lost city of Atlantis.