‘Dark age’
Goodjob it was great however I didn’t really study in Middle Ages.
The longest division of time in the geologic time scale is the Eon. It spans hundreds to thousands of millions of years. The two biggest Eons are the<span> Precambrian eon and the Phanerozoic eon.</span>
Best answer I know is the group of the extremists is Al Qaeda, although I'm pretty sure that's not what you're looking for.