For centuries, the voice of the Greek doctor Galen, who held that blood is produced in the liver and filtered through tiny pores in the heart, went unchallenged.

Tags decentralized and democratized the organization of information. What became of "social tagging?"

Theories abound. Historian William H. Lambert considers the origin of the address and the mythology surrounding its composition.

Well-researched stories from Scientific American, Wired, and other great publications that bridge the gap between news and scholarship.

In 1950, the U.S. State Department fired 91 employees because they were homosexual or suspected of being homosexual.

In eighteenth century Japan, human excrement played a vital role in agriculture. Can similar solutions help manage waste today?

Peru and Chile both produce the grape brandy called pisco, and they both consider it their national drink.

The literary critic Walter Benn Michaels challenges the prevailing trends of postmodernist theory.

Marine heatwaves are becoming stronger and more common as the climate warms.

Ch'arki is made in the high-altitude Andes by alternately drying the meat in the hot sun and freezing it during the cold nights.