Asterix and the Black Gold

I'm curious how the author decided to blend real-world history with the humorous, fantastical elements of the series. Was there a particular event or culture that inspired this adventure?

The jokes and caricatures seemed more pointed here — was that a conscious choice to reflect the theme or just the author's style evolving?

The illustrations felt more dynamic and detailed, which really brought the adventure to life. I wonder if there was a new artist or a different approach this time.