Question

i'm trying to locate some dates for native american tribes, specifically, when they flourished. at the moment, i'm searching the tlingit, but no luck w/ the date...any sites that would have this kind of info for most native american tribes?

Answer 1

the tlingit are the indigenous people of what is now Canada's Yukon and British Columbia.

A simple Google search for "tlingit" will give you hundreds of pages.
Similar results can be obtained for other native North American tribes.

Answer 2

This site will give you an approximate date for the Tlingit.
http://www.everyculture.com/multi/Sr-Z/Tlingit.html

This is an excellent site on native American tribes.

http://www.nativeculturelinks.com/nations.html

Answer 3

Frankly, I wonder what you mean by flourish? By my understanding, most are in that period now.
The Maya civilization was flourishing when it was destroyed by Spanish disease and war in the late sixteen hundreds.