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  American explorer and frontiersman Daniel Boone blazed a trail to the far west though the Cumberland Gap, thereby providing access to the frontier.
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  He patned a machine that speeded the process of removing seeds from the cotton fibers.
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  It was a land deal betweens france and the united states.
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  They are trying to reach st. louis
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  war between america and the united kingdom
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  John Fremont led western explorers in the 1840's and 1850's.
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  A act that was passed to make removal of the indians.
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  the widely held belief in the United States that American settlers were destined to expand throughout the continent.
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  The Oregon Trail is a 2,200-mile historic east-west large wheeled wagon route and emigrant trail that connected the Missouri River to valleys in Oregon