I'm somewhat confused by the timeline in Stargate. When exactly did Merlin return to Earth? Was this before or after Ra set up shop in Giza? If it was before, doesn't that mean that there were Ancients on Earth when the Goa'uld arrived? I was under the impression that the Gould were instrumental in spreading humans as a slave race across the galaxy. If the ancients returned before Ra'a arrival, didn't they have something to say about the arrival of the Goa'uld? Didn't any of the ancients still out in the galaxy have anything to say about the Gould? It seems odd that Merlin was worried about the Ori while totally ignoring the fact that humanity was enslaved already. Speaking of Merlin and the Ori, in order for Merlin's story to have had any impact on Authurian mythology, that would mean that his devolution back into human form happened long after the slaves showed Ra the door. That immediately leads to the question of how did Merlin and his knight leave Earth? The gate was obviously burried in Giza. The Antartica gate should have long since been lost. How did he end up on another planet? If merlin and his knights used the antartica gate, how come the Gould were cut off from Earth? (To be quite honest, the burrial of the Giza gate should not have stopped the Gould at all since the Antartica gatw would once again be the default)