The Mural in Red Side Top Lane
I originally came up with this concept a few days ago but decided to mention it after seeing it in GBay's video.
In the red side's top lane, there is a broken mural. Just pointing out the obvious right now.
After looking through SR thoroughly (for no absolute reason), I noticed something about the red and blue sides: both fountain have a figure that looks like a man, whom we'll call red-king and blue-king. I also noticed that these figures are the same as the statues that make up or design the turrets. Blue-king seems to wield a hammer-type thing. Red-king has a sort of staff that you might see a mage carry. There are also miniature "statues" along each base of each respective "king".
So back to the mural. If you look closely, you'll probably see that the two "kings" are there, bowing to each other. They are also in front of their respective turrets. My take on this is that:
The two "kings" had a peace treaty or something peace related, and something like a war happened where it "broke", hence the cracks in the mural and their "face" being plastered all over a battle ground
So yea.
Any ideas? Other theories?