C399 Misty's past
Thousands of years ago.
As a Night Elf, Misty was only in her twenties. It was obvious that she was no different from a child in the distant Elf Clan.
As a race that was divided equally between the continent and the Dwarf Clan, the Elf Clan's life was unusually distant. Basically, the elves with the shortest lifespan in the Elf Clan could live for a few years or even a thousand years