Ancients

The Ancients are a humanoid race in the Stargate universe. They are called "Ancients" in the Milky Way, but are also known as Lanteans or Ancestors in the Pegasus galaxy and as the Alterans in their home galaxy, and they sometimes call themselves Anquietas in their language. In the series mythology, they are one of the most advanced races known to have existed, having evolved millions of years prior to the present day and reaching their level of technology long before humanity evolved on Earth. They are best known as the builders of the Stargates, the giant ring-shaped portals commonly used by Earth-based humans to travel and explore the Milky Way and Pegasus galaxies.