Amelius

Amelius was an Alteran and the inventer of the Ark of Truth. It was not used in his lifetime, however, as the other Alterans ruled that they could not use it as if they did the Ori would be denied of their free will. He was forced to leave it behind at Ortus Mallum when the Alterans left due to the threat of the Ori. (Stargate: The Ark of Truth)