In the science fiction television series Stargate SG-1, the alliance of four great races was an ancient alliance of four advanced species that was built over many millennia and existed before the rise of the Goa'uld and the Wraith. A broadcast of the long-running and popular British science-fiction series Doctor Who. ... Season 8s opening title Spoiler warning: See Stargate for a general summary of this universe, or List of Stargate SG-1 episodes for a detailed plot analysis. ... The Goauld [ˈgoʊ˘uːld] are a fictional parasitic alien race in the science fiction television series Stargate SG-1 universe. ... In the science fiction television series Stargate Atlantis, the Wraith are a hive-based parasitic species that drove the Ancients out of the Pegasus Galaxy around 8000 BC. Ever since they have been the dominant race of the Pegasus galaxy, and they are the primary antagonists of the series, similar...

A planet with a facility where they used to meet and interact as "a sharing of clans to share a common interest" was discovered by SG-1 in the 1st season episode "The Torment of Tantalus". Dr. Daniel Jackson was viewing Pentagon archival films of the Stargate Program vintage 1945 when he saw an American scientist named Ernest Littlefield walk through an active Stargate. In a large castle-like structure each race had scribed a wall of text in their own unique language. At least initially, each race was unable to communicate to the other so they developed a common language using the 146 known (to them) chemical elements as basic symbols. Each time the "tablet" was touched a new "page" would appear in the form of a combination of floating molecules made up of specific elements (e.g. hydrogen, sodium, silver, iron, etc. as well as-yet unknown exotic elements, such as Naquadah) which itself was the method each race used to first communicate with the other. As Dr. Jackson proclaimed, the four races broke everything down to basics and created "a truly universal language". SG-1 unit patch SG-1 (Stargate unit one) is the flagship unit of Stargate Command. ... Jump to: navigation, search The Torment of Tantalus is an episode from the first season of the science fiction television series Stargate SG-1. ... Daniel Jackson is a fictional character in both the science fiction feature film Stargate and the subsequent television series Stargate SG-1 played by actors James Spader in the former and Michael Shanks in the latter. ... A chemical element, often called simply element, is the class of atoms which contain the same number of protons. ... Jump to: navigation, search General Name, Symbol, Number hydrogen, H, 1 Chemical series nonmetals Group, Period, Block 1, 1, s Appearance colorless Atomic mass 1. ... Jump to: navigation, search General Name, Symbol, Number sodium, Na, 11 Chemical series alkali metals Group, Period, Block 1, 3, s Appearance silvery white Atomic mass 22. ... Jump to: navigation, search General Name, Symbol, Number silver, Ag, 47 Chemical series transition metals Group, Period, Block 11, 5, d Appearance lustrous white metal Atomic mass 107. ... Jump to: navigation, search General Name, Symbol, Number iron, Fe, 26 Chemical series transition metals Group, Period, Block 8, 4, d Appearance lustrous metallic with a grayish tinge Atomic mass 55. ... Naquadah is a fictional, superheavy metal used in Stargate SG-1 (and also in the original Stargate movie, though it was not named). ...

In the 2nd Season episode "The Fifth Race" we learn that the four races were the Ancients, who built the Stargates, the Asgard, the Furlings and the Nox. Avid viewers have met and become familiar with all but the Furlings as of the end of Season 8. The Fifth Race is an episode from the Second season of the science fiction television series Stargate SG-1. ... The Ancients (or Alterans, as they originally called themselves) are a fictional race in the Stargate universe. ... A fictional species from the Stargate television series. ... In the science fiction television series Stargate SG-1, the Furlings are an alien race. ... Jump to: navigation, search The Nox are a fictional race on the television series Stargate SG-1. ...