Which events go where chronologically: The Rise and Fall of Shurima, Rune War, and the Darkin War?

I got to thinking about this while talking to some friends about the new Varus lore. One thing no one could agree on is the placement of these events in regards to one another. My thought is that it goes Shurima>Darkin>Rune War, but I have no evidence to support that other than the terminology used to describe the events. and were said to be guarding Shurima for centuries prior to its fall, and describes Shurima as a wasteland, so I think that event is probably the oldest. He doesn't recognize Nasus or Renekton's statues, which he would have if the Darkin war was during Shurima's peak, as both would have fought against his comrades or even himself. However the Rune War is still remembered and the Darkin War is largely forgotten, so I doubt that the Darkin War would be the more recent of the two, as both were called "Extinction level" events.
Anyone have any ideas?