![](http://up.wiki.x.io/wikipedia/commons/thumb/2/2e/Three_chiefs_Piegan_p.39_horizontal.png/275px-Three_chiefs_Piegan_p.39_horizontal.png)
A 1900 photograph of three Piegan (Blackfeet) Indian chiefs. When Iberian horses were obtained from the Spanish, the Plains tribes rapidly integrated them into their daily lives. By the early 18th century some tribes had fully adopted a horse culture.