In the mid to late 1800s, the us government granted land to railroad companies to expand their networks. what is another way that railroad companies used the land?

donald carl johanson (born june 28, 1943) is an american paleoanthropologist. he is known for discovering – with yves coppens and maurice taieb – the fossil of a female hominin australopithecine known as "lucy" in the afar triangle region of hadar, ethiopia.

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