What was Chief Joseph’s purpose in speaking?

Chief Joseph's purpose in speaking was to proclaim the surrender of the Nez Perce Indians to the U.S. Army. Chief Joseph says he is "tired of fighting" and that he is "sick and sad" to establish logos and convince his people that it is time to surrender.

states began imposing duties on each other's goods. congress had no way to raise money for an army to expel them.

he is known for discovering   the fossil of a female hominin australopithecine   known as "lucy" in the afar triangle region of hadar, ethiopia.

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