When I was a kid, back in the fifties, we had a superstition that if there ever appeared a star within the horns of the crescent of the new moon, the Mohammedans of the world would rise up in holy war against the West. We knew what the word jihad meant (despite modern lies to the contrary).
The more learned of us knew that that was not possible, because what appeared to be empty space was actually the unlit surface of the moon, and the stars were farther away than that. However, after Sputnik, there seemed to be a reason to worry.
Well, I've never seen that phenomenon, but I have seen jihad, even though I never thought, fifty-some years ago, that I would live long enough to see it.