17th-century surgeon performing a c-section.
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Pelvic Obsessions

How the “obstetrical dilemma” and the dark history of pelvimetry met in the present.
Col. Elmer Ellsworth

Ellsworth, Embalming, and the Birth of the Modern American Funeral

Colonel Elmer Ellsworth's death marked a turning point in how the nation honored the fallen.
Tar
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La Brea and Beyond

Pits and seeps full of tar and asphalt offer new insights into old ecosystems and cultures.
Cow hung from a sling to be milked.

Swill Milk: When Distilleries Defiled Dairy

In the mid-1800s, shady milk purveyors found it was cheaper to keep cows in cities and feed them the byproducts of whiskey manufacturing. The results were dire.
A drawing of a microscopic slide of Bacterium lactis.

Dying Before Germ Theory

The harrowing experience of being powerless against illness and death.

‘Great Enough to Blow Any City Off the Map’: On Site at the First Nuclear Explosion

The men who set off the nuclear age tell the tale in their own words.
Three 19th-century daguerreotype portraits.

Flashes of Brilliance: The 19th-Century Innovations That Shaped Modern Photography

On daguerreotypes, William Henry Fox Talbot, and darkroom dangers.
Side by side still-frames progressively depict the first nuclear explosion.

80 Years Ago: The First Atomic Explosion, 16 July 1945

Declassified documents show atomic testing in New Mexico distributed radioactive matter to an extent that the scientists at Los Alamos were ill-prepared for.
Magazine ad for Johnson & Johnson baby products.

Licensed to Ill

The disquieting story of an American health-product giant.
Tornado over the Texas capitol building.

The History of Eugenics in Texas Isn’t What You Think

A new book unearths a chapter of the state’s story when anti-intellectual fundamentalism was put to good ends.
Six stools with increasingly pixilated versions of "The Thinker."

Perplexity

Why is the essential promise of technology and the alleviation of drudgery not enough?
Vera Rubin and looking through a telescope.

Who Was Vera Rubin?

The Large Synoptic Survey Telescope was renamed The Vera C. Rubin Observatory. This telescope is breaking new ground, just as Vera Rubin did in her lifetime.
Photo illustration by Slate. Photo by Acey Harper/Getty Images.

The Angry Death of Kimberly Bergalis

A dark mystery shocked America in the early 1990s, from prime-time shows to Congress. It’s largely been forgotten. It shouldn’t be.
Phineas Gage.

How the ‘Myth of Phineas Gage’ Affects Brain Injury Survivors

Why does the diagnosis of Gage social ‘disinhibition’ lean so heavily on flimsy documentation about Gage, while overlooking the case of Eadweard Muybridge?
Glen Dash with video game equipment at MIT's NSF-funded Innovation Center.

The Birth of the University as Innovation Incubator

In the 1970s, the National Science Foundation tried to shake up the Cold War research model.
Vannevar Bush
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Science in War, Science in Peace: Origins of the NSF

The establishment of a federal agency devoted to space, physics, and more belied a cross-party consensus that such disciplines were vital to national interest.
Mother's hand holding baby's hand on the cover of "Blue: A History of Postpartum Depression in America".

On Rachel Louise Moran’s "Blue: A History of Postpartum Depression in America"

A new book challenges the discursive ignorance about the condition.
A train in the Texas countryside.

The Secret ‘White Trains’ That Carried Nuclear Weapons Around the U.S.

For as long as the United States has had nuclear weapons, officials have struggled with how to transport the destructive technology.
During its first year of service, Freedom House Amublance Service transported more than 4,600 patients across 5,800 calls, saving 200 lives. Heinz History Center

These Black Paramedics Are the Reason You Don’t Have to Ride a Hearse or Police Van to the Hospital

In the 1960s and 1970s, Freedom House Ambulance Service set the standard for emergency medical care, laying the groundwork for the services available today.
An eraser erasing a drawing of man.

R.F.K., Jr., Anthony Fauci, and the Revolt Against Expertise

It used to be progressives who distrusted the experts. What happened?
Yosemite Valley from Artist’s Point

This Land is Their Land: Trump is Selling Out the US’s Beloved Wilderness

During the McCarthy era’s darkest days, public lands came under attack. History now repeats itself – and this may be the last chance to defend what’s ours.
Illustration of a baby chewing on the cord of an old candlestick telephone.

Teething Babies and Rainy Days Once Cut Calls Short

“Trouble men” searched for water damage in early analog telephones.
Hakeem Jeffries with a sign that reads "Hands off Medicaid and SNAP"
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The Historic Dangers of Slashing Medicaid Funding

Medicaid has always been fiercely contested political terrain, and past cuts have had disastrous human costs.

How to Not Get Poisoned in America

"We should go back into history and ask: Why did we need the federal Pure Food and Drug Act in 1906?"
Syringe drawing liquid from a vial.

Vaccine Rejection is as Old as Vaccines Themselves

How and why ideas like germ theory are pursued, accepted or ignored, and how human habits of the mind can make it difficult to ask the right questions.
Lethal injection table.
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Lethal Injection Is Not Based on Science

The history of the three-drug combo used in death-penalty executions. 
Robert F. Kennedy Jr.
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The History of Why Raw Milk Regulation is Necessary

In the 19th century, tens of thousands of babies died every year of gastroenteritis.
Lt. Selfridge and Mr. Wright stepping into the Wright aeroplane at Fort Myer, Virginia.

Uh-Oh

“When you invent the plane, you also invent the plane crash.”
A woman holding her head in distress, and a naked woman sitting on an illustration of a toy car pulled by string.

Frog-Free

The demystification of pregnancy.
Man working on a farm.

RFK Jr.’s 18th-Century Idea About Mental Health

The health secretary’s clearest plans for psychiatric treatment are a retreat to the past.