Is Facebook bad for your mental health? Researchers have been studying the profound impact social bonds can have on health since the 1970s.

Elizabeth Ann Seton is known today as the first American Roman Catholic saint. Her road to canonization was no easy path.

Sometimes different but related species can reproduce. When two different species successfully mate, the resulting offspring is called a hybrid.

17th-century Amsterdam was the first city in Europe to have an efficient system of street lighting—thanks to a Golden Age painter called Jan van der Heyden.

The world tends to forget about the annual ozone hole that appears over Antarctica, though we're facing huge and complex environmental concerns.

Robert E. Gilbert argues that the key to understanding Ronald Reagan is knowing that he was the child of an alcoholic.

For Puritan New England, picture books were dangerous. But the Enlightenment, by way of John Locke, made illustrations more acceptable in the classroom.

Censorship isn't just redacted text and banned words. What happens when censorship is furtive, flying under the radar as much as possible?

Supermarkets represented a major innovation in food distribution—a gendered innovation that encouraged women to find sexual pleasure in subordination.

What would have been considered a dystopian level of surveillance a mere twenty years ago has now become the norm. Why don't internet users care?