Guaraná: Stimulation from the Amazon to the World
Long cherished by Indigenous peoples for its medicinal and stimulating properties, guaraná remains a key element of Brazilian identity.
Laura Kieler: A Life Exploited
Norwegian playwright Henrik Ibsen mined Kieler's life for the plot of his most famous play, The Doll's House.
Pro-Sex Feminists of the 1920s
In the early decades of the twentieth century, political and social activists saw separating sex from marriage and reproduction as an issue of freedom.
The Eight Best Hidden Impact Craters on Earth
Many impact craters on Earth have been erased thanks to wind, water, and plate tectonics. But scientists have clever ways to find them.
The Invention of the Gifted Child
The National Defense Education Act of 1958 meshed with white anxiety about the desegregation of schools.
Making Malt Liquor at Monticello
Thomas Jefferson thought whiskey was harmful to the country. Together with enslaved brewer Peter Hemings, he experimented with making less potent drinks.
A Short History of Hairdryers
The beauty parlor became a place of sociability for women in the twentieth century, partly aided by modern technology of hair drying.
Understanding Capitalism Through Cotton
Looking at the development of cotton as a global commodity, explains historian Sven Beckert, helps us understand how capitalism emerged.
A Boatload of Knowledge for New Harmony
Leaders of the Philadelphia Academy of Sciences voyaged down the Ohio River in 1825–1826, taking academic education on a journey in search of utopia.
