Talk:Avatar/@comment-1416077-20121001124254/@comment-1416077-20121006201409

Like I said; it's just speculation. I'm pretty positive that there are no tiers above the last one seen, but we need to account for the circular nature of the hall. Overall, if I were a betting woman, I'd say there have been no more than 250 avatars in all of history, likely fewer, like 200-230. That is still a staggering amount of history; consider that between the death of one avatar there is a period without an "active" avatar, until the new one is identified and trained; we know Korra was four, Aang was twelve and Roku was sixteen, so even if a previous avatar "served" less than one year, a considerable period of time may have passed between the death of one avatar and the death of her successor. If we assume a *very* conservative average of 25 years between one death and the next's death, and further assume 200 avatars, that's 5,000 years right there; if it were our world today, at that time (3,000 BC), the First Pharaoh of Egypt would be coming into power, some Sumerian dude would be inventing writing as the bronze age is starting up and in what will be known as China (in another 2,800 years), they'd still have to wait 800 years or so for the Xia Dynasty to begin taking the first steps toward Ancient Chinese culture.

That's a LONG time ago!