San Diego during the 1930s and the Canal Zone in Panama

A Glimpse at Women’s Periods in the Roaring Twenties 

A 1927 study by famed efficiency expert Lillian Moller Gilbreth revealed how American women dealt with menstruation -- and how they wished they could.
An Octagon House

A Phrenologist’s Dream of an Octagon House

Orson S. Fowler thought houses without right angles would offer a better life, but his own architectural experiments did not end well.
Two children looking at artwork hung on the wall

Taking Children’s Art Seriously

Are children’s drawings meaningless scribbles or serious creative work? Western scholars and child psychologists have debated this topic for years.
Hand with Skull Shaped Pill

Why Companies Swallow Poison Pills

Faced with a potential hostile takeover, companies may deploy a dramatic shareholder rights plan, colloquially known as a "poison pill."
An opossum feigning death

The Biology of Death-Feigning

Some animals, when faced with predators, play dead instead of trying to escape. But for death-feigning to work, a lot of things have to go well.
Berthe Morisot, “Woman at Her Toilette”

How Impressionist Berthe Morisot Painted Women’s Lives

Berthe Morisot never became as famous as her counterparts Claude Monet and Édouard Manet, but her work has an important place in art history.
Bilateral Gynandromorph Cardinal

The Mysterious Gynandromorph

Gynandromorphy is an extremely rare condition in which an animal is half male and half female. It's most visible in birds and butterflies.
The Birth of the Monroe Doctrine by Clyde O. DeLand

The Monroe Doctrine’s Checkered Past

This 1823 policy initially focused on preventing European colonization in the Americas. But different U.S. presidents have used it to mean different things.
A toddler tea party in a play house

A Sense of Place for Toddlers

Young children have a unique sense of the world that can be difficult for grown-up architects to grasp.
Profile portrait of Catherine II by Fedor Rokotov (1763)

The Memoirs of Catherine The Great

Catherine II ruled Russia for many years. She also wrote her own memoirs, in a time when such writing was considered inappropriate for a monarch.