Although most known habitable planets in the "Stargate" universe are populated by humans, there was once an Alliance of four great races, an extinct alliance of four advanced species that was built over many millennia and existed before the rise of the Goa'uld.
Most known habitable planets in the "Stargate" universe are populated by humans. There was once an Alliance of four great races. Four great races were an extinct alliance of four advanced species. These four advanced species was built over many millennia. These four advanced species was existed before the rise of the Goa'uld.