From The Stargate Omnipedia
Originating from the planet Earth
, humans are a most common sight on Stargate
-occupied planets. Thousands of years ago the Supreme System Lord Ra
discovered Earth, from which the Goa'uld
scattered humans throughout the galaxy. The humans of Earth are known by the Goa'uld and Jaffa
as the Tau'ri.
Certain numbers of humans were genetically altered into Jaffa, humans designed for the purpose of carrying the larval form of the Goa'uld. The Goa'uld also impersonated the deities of ancient civilizations on Earth, to gain obedience and worship.
Over the centuries, many planets inhabited by humans once under domination became devoid of Goa'uld interaction, permitting the humans independent development in the directions of their original cultures. Egyptian, Roman, Greek, and many other root cultures gradually began to spring up across the galaxy in their own unique forms. But many worlds still suffer from Goa'uld oppression and, consequently, are underdeveloped. The past millenia have been wasted for them by poverty under the power of Goa'uld lords and Jaffa soldiers.
On Earth, the Tau'ri have unlocked the secrets of the Stargate and begun to explore the universe. The teams of the S.G.C. have found countless human cultures, and helped to liberate many of them from the Goa'uld. In so doing, the Tau'ri have taken their place on the galactic landscape.
HOMEWORLD - Earth
FIRST APPEARED - "Stargate" the Movie
"Stargate" the Movie - Earth unburies and opens its Stargate, discovering the planet Abydos and freeing its people from the rule of Ra.
Children of the Gods - After a brief Goa'uld attack through the decommissioned Stargate, the United States forms Stargate Command to explore the universe.
The Enemy Within - The S.G.C. learns from Teal'c that Earth is the original world of humans -- the lost world of the Tau'ri.
Within the Serpent's Grasp - Earth is threatened by an all-out attack by Apophis, who is poised to exact revenge for the death of Ra.
The Serpent's Lair - SG-1 destroys Apophis's two ships and saves Earth from his attack.
The Fifth Race - O'Neill encounters the advanced Asgard, who tell him that humans are already on their way toward becoming peers with them.
Fair Game - The Asgard negotiate with the Goa'uld to include Earth in the Protected Planets Treaty.
2010 - SG-1 changes history to narrowly avoid the near-extinction of the human race by the Aschen.
Fail Safe - The Goa'uld violate the Protected Planets Treaty by covertly attempting to destroy Earth with a naquadah-rich asteroid.
Redemption, Part 1 - Anubis tries to destroy Earth by destroying the gate with a weapon of the Ancients.
Disclosure - The United States and Russia inform China, France and Great Britain about the existence of the Stargate, and the Goa'uld threat to Earth.