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Lewis & Clark: Expanding & Preserving the Union (Primary Source Readers)
Lewis Clark Expanding Preserving the Union - Primary Source Readers Author:Jill K. Mulhall, M.Ed. Lewis and Clark were commissioned by President Thomas Jefferson to find a water route from the Mississippi River to the Pacific Ocean. The men were also asked to explore the newly purchased Louisiana Territory. They never found a water route, but they successfully documented information about the new lands.