His first appearance was in strip 30, but he is not named until strip 174.
Comparing the Third Reich to a zepplin: "Full of gas and likely to blow up at any minute?"
On stealing the Mayan Codices: I fear history will not judge us kindly, Herr Colonel.
On the power of the Mayan Codices: Didn't the Maya collapse into decadence and get defeated by the Spanish in a few years?
On comparing the Third Reich to the Roman Empire: They tried to become a thousand year empire, and look at what happened to them...