An accomplishment of the lewis ad clark expedition was that it

An accomplishment of Lewis and Clark Expedition was that it helped set up relationships between American Indian tribes, and were able to map the Missouri River and the River connected to it, mapping from Louisiana all the way to present-day Washington state.

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the treaty of brest-litovsk was a peace treaty signed on 3 march 1918 between the new bolshevik government of russia and the central powers (german empire, austria-hungary, bulgaria, and the ottoman empire), that ended russia's participation in world war i.