One neat and tidy idea is that instead of banning Lupercalia — which Romans celebrated for a remarkably long time — Christians adopted and renamed it. This stems from a strongly-worded letter by Pope Gelasius circa 494 B.C.E., where he criticized fellow Christians for participating in something that used to showcase naked people whipping each other.
This, one would think, would be enough revenge for one queen. But not Olga of Kiev. Now, with her position made clear, the real destruction could begin. A war between the two nations broke out, with Olga’s side too formidable to defeat in battle. After the initial conflict, her army drove the survivors back into their cities and marched on Iskorosten to lay siege to the city. After a year passed with no success, Olga hatched a plan that was as creative as it was devious.