@Riot: We REALLY need a relative timeline!
That should be actually a no brainer.
Of course you don't need an exact timeline with year numbers and stuff - just show us in what chronological order the content happened you are releasing. Just what happens after what and you can expand that "timeline" whenever you publish a new part of the puzzle that forms the history of runeterra. If the events have no direct connection it doesn't even matter what's exactly before what... but we need to get the basics down somehow!
That way would also be awesome to give newcomers a quick overview about the content without confusing them. A simple timeline giving access to all the lore content you made... doesn't sound too hard to make no? Take what you have, bring it together and out it on an easy to use website.
So... what do you think about it?