An anti-vaccination pamphlet from 1911, a rally of the Anti-Vaccination League of Canada, 1919, and an Anti-Vaccination Society of America advertisement from 1902

Vaccine Hesitancy in the 1920s

As Progressive Era reforms increased the power of government, organized opposition to vaccination campaigns took on a new life.
Shucking Oysters, Biloxi, Miss.

How Oysters Became a Food Fad Way out West

Oysters in Wyoming and Arizona? In the nineteenth century? Yes, and mighty tasty too!
Leading Kentucky hemp farmer Joe "Daddy Burt" Burton with a harvested hemp plant.

The Return of Hemp

Even though it's made from cannabis plants, you can't get high on hemp. But it was classified as an illicit drug for nearly 50 years.
The sun in an orange sky

How Do Scientists Define a Heat Wave?

It seems that every summer brings record temperatures. But there's more to a heat wave than daytime highs.
Maurice Papon, 1958

The “Stone Face” of Racism

On October 17, 1961, Parisian police attacked a group of Algerians. The event would be lost to French history until a Nazi collaborator was exposed.
Psilocybe Cubensis

The Nice Married Couple Who Inspired People to ’Shroom

In the 1950s, Gordon and Valentina Wasson encountered magic mushrooms. Then they wouldn't stop talking about them.
An advertisement for Burdock Blood Bitters

The Bitter Truth About Bitters

A bottle of bitters from about 1918 had significant amounts of alcohol and lead—and not a trace of the supposed active ingredient.
From THEM!, 1954

Fear of an Insect Planet

"Big bug movies" of the 1950s have been interpreted as projections of nuclear anxieties. But what if they were about...actual fear of bugs?
Ascaris worms, a group of parasitic nematode worms, also known as small intestinal roundworms.

How Archaeologists Use Parasites to Track Urbanization

Historical patterns of parasitic infection show up differently depending on the class status of a neighborhood.
Martin and Osa Johnson

How Two Kansans Invented the Safari Documentary

Martin and Osa Johnson were celebrities in their day, but their vision of Africa was way out of touch with reality.