Forum:First age begining

Hey everyone.

So the section on the First Age says it starts with the creation of the sun. However, I've seen many people on different sites saying it actually starts much earlier than this, possibly at the start of the Years of the Trees or at the birth of the Elves. What are the sources for it begining at the creation of the sun/the birth of men?

Bros Before Dinos (talk) 12:04, March 28, 2016 (UTC) Bros Before Dinos