From the southern tip of Florida to the Alaskan wilderness, explore North American history in-depth in the North American history section.
Explore the development of the United States with this collection of articles about American history. Topics in this section include the American Revolution, the gold rush and the expansion of the West. See more »
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Why Hot Food Always Seems So Much More Satisfying Than Cold Food
This Mammalian Ancestor Was Also Earth's Earliest Venomous Vertebrate
High Schools Are Allowing Sleep-deprived Students to Take Midday Naps
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