when did rick riordan clarify his stance of hitler being a demigod

Rick Riordan’s clarification appears to have been made at a book talk before 2010 , since a Riordan Wiki discussion from October 8, 2010 says he “said at a book talk that Hitler was not a demigod.”

What the sources show

• A 2010 fandom discussion records that Riordan said at a book talk that Hitler was not a demigod.

• A later Reddit thread from July 4, 2023 repeats that he clarified this “8y ago,” which lines up with an earlier public statement rather than a recent one.

• The FAQ page on Riordan’s official site doesn’t address this specific point, so the clearest timestamp in the available sources is the pre-2010 book talk reference.

Best answer

So the safest answer is: Riordan clarified it sometime before October 2010, at a book talk, and probably earlier than that.

Context

This comes up because the series has characters infer that Hitler and/or Mussolini might be linked to Hades/Pluto, but that was treated as fan assumption rather than a canon confirmation.