In 1178, a group of monks at Canterbury saw the moon suddenly explode into sparks, "writhe," and "take on a blackish appearance."
io9.com/why-did-a-group-of-medie ... 1694716988
Now, what really happened?
That's only 42 years ago, magi must have witnessed it!
A magus with a wicked sense of humor wanted to try out a MuIm spell to make it see if he could appear to affect the moon even though he could not really affect it...
or perhaps he was experimenting with affecting the lunar sphere trying for a hermetic breakthrough...
Signs and Portents of momentous events. 1178 was the triumphant return of the Diedne from the regio they were hiding, now starting to spy intently upon their oppressors. Coincidently, a mere 48 years later the Order experiences unprecedented growth in both numbers of magi and numbers of covenants.
We have seen the enemy and they are us.