Learn what archeological and linguistic studies tell us about how early humans moved across Africa, Eurasia, and the Americas.

See a description of chirality and other features of DNA in section 3 of the online text, 'The Emergent Genome.'

Read about Poe’s life and the dark, sometimes supernatural, tendencies of his writing in American Passages.

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'Egalitarian America' looks at the struggle for civil rights in the U.S. from the 1940s to the 1970s.