Conversation so far:
When is the Blackfoot confederacy started ?
Only one of the Niitsitapi tribes are called Blackfoot or Siksika.
Does any record exist of the Blackfoots' early  history  ?
The name is said to have come from the color of the peoples' moccasins, made of leather.
They had typically dyed or painted the soles of their moccasins black.

Question: How did the Blackfoot early society worked ?
Self-contained rewrite: How did the Blackfoot early society worked ?