When did the black feet Indians live?

Answer 1

There are two unconnected and unrelated groups of people in North America who have been given the name "Blackfoot" or "Blackfeet". One tribe is a part of the Sioux people, who call themselves siha sapa; the other (much larger group) is the Blackfoot people of Montana, Alberta and Saskatchewan who call themselves siksikakwan. The languages, beliefs and social structures of these two groups are totally different.

The Blackfoot Sioux were not a separate tribe at the time of the Lewis and Clark expedition, but had become so by about 1825. They still exist today on the Standing Rock Reservation in South Dakota.

The Blackfoot group of the far northern Plains have a much older history; long before the first European explorers encountered them they were the most westerly of the Algonquian-speaking tribes. Since at least 1750 the three tribes that make up the group have been known by distinct names: Piegan, Blood and Blackfoot (collectively called Blackfoot). These three tribes still exist today, but their prehistoric origins are lost in the mists of time.