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None (present) Tollan (past)
None, Advanced (past)
|Under control of||
None, Tollan (past)
|Out of universe information|
- "I am Omoc, our world is called Tollan."
- — Omoc
Tollan is a planet in the Milky Way galaxy that was homeworld to the Tollan people which suffered from a catastrophic destruction in 1997 and was abandoned by its inhabitants for a new world, Tollana.
The Tollan began to explore their solar system and discovered that a near-by planet, Sarita, was inhabited. The Tollan shared a clean, limitless, power-generation technology with them and they used it to make war. The destroyed their entire planet in one Tollan day. The destruction of Sarita shifted Tollans orbit destabilising the planet.
When SG-1 arrived on Tollan the planet was suffering from intense volcanic activity, the air was toxic and had almost entirely been evacuated. There were only a few Tollan left behind to disable to Stargate but they were all unconscious. (SG1: "Enigma")