From The Stargate Omnipedia
A scattering of a few thousand people who farm their planet, Volia
, for themselves and the Aschen Confederation
. Originally the Volians were a peaceful and productive society who had reached Earth's early twentieth century in the way of their own industrial revolution. Then the Aschen arrived by ships and invited them into their confederation.
An Aschen drug, administered to the entire population, appeared to slow the natural aging process, but also caused the majority of the population to become sterile. The civilization fought back, but was abruptly silenced. The Aschen covered the urban areas in soil for farming and made certain no Volian remembered the truth about his or her people's history.
Today the people are entirely ignorant of the malice the Aschen had treated toward the Volian people. Some Volians are even raised by Aschen families.
HOMEWORLD - Volia
FIRST APPEARED - 2001
2001 - SG-1 encounters the Volians, an agrarian society numbering in mere thousands who have powerful friends, the Aschen.