For uncounted centuries humans have inhabited the world of Lyran Tal. The Elves believe their own arrival predates Humans, but there is no proof of this theory and there's not much that can be done to redirect the Elves' typical sense of superiority. Elves were, admittedly, the first to occupy Arboria, but Arboria is only a small part of the world.
Humans know that. Do Elves?