Earth has many names among the various cultures and races which SG-1 has met along the way. To the Jaffà and Goa'uld, it is known as The First World, home of the Taurì. It is the mandate of the S.G.C to protect Earth by using the Stargate to find allies and technology.
Stargate Eternity[]
In this alternative time line, the Earth has never been discovered by the Goa'uld and consequently there are pyramids or references to the Goa'uld. The Stargate is hidden under the ice of Antarctica.