Who built the Korlev (Joseph seamed to imply that the Russians built it when it was the Americans who built it and traded it for the Gate), then he also implied that the Chinese could have built the Sun Tzu, despite the fact that the US hadn't been shown to give the advanced tech out to everyone, nor would the Chinese had been able to get their hands on the materials needed.
The fact Naquadria is artificially created and can't be natural.
At one point they even forgot what galaxy was the Asgard's home galaxy giving it a new name