The rate of societal change and scope of consequences—led by technology and demographics—have quickened far, far beyond the glacial pace at which over 99 percent of human history unfolded.

Long considered a disease brought to the Americas by European colonizers, leprosy may actually have a much older history on ...

The history books say Europeans brought leprosy to the Americas, but analysis of ancient DNA reveals that a form of the ...

Often remembered merely for guiding Lewis and Clark, Sacagawea’s story is far more complex. Discover the deeper story behind ...

Young children may learn about climate disasters through firsthand experiences with wildfires or floods or because of the ...