In 1959, a social psychologist in Michigan brought together three institutionalized patients for an experiment:

[W]hat would happen, he wondered, if he made three men meet and live closely side by side over a period of time, each of whom believed himself to be the one and only Jesus Christ?

The history of – and recent controversy over – the diagnosis.

The anatomy of a 1930 epidemic that wasn’t:

Was parrot fever really something to worry about? Reading the newspaper, it was hard to say. “not contagious in man,” the Times announced. “Highly contagious,” the Washington Post said. Who knew? Nobody had ever heard of it before. It lurked in American homes. It came from afar. It was invisible. It might kill you. It made a very good story. In the late hours of January 8th, editors at the Los Angeles Times decided to put it on the front page: “two women and man in Annapolis believed to have 'parrot fever.'"

The case against agriculture.

On the dying city of Port Arthur, Texas, and one man’s fight to save it.

How is Canada’s “post-AIDS” generation coping? Not that well.

[I]n some ways we are still hopelessly lost. A generation of men who could have been our mentors was decimated. The only thing we learned from observing them was to ruthlessly identify “AIDS face,” that skeletal appearance the early HIV drugs wrought on patients by wasting away their bodily tissues. But those faces grow more rare each day.

At work with the scientists standing on the precipice of a grand unified theory of the universe. Or failure.

On the culture of plastic surgery in Los Angeles, and how the reporter’s life changed when she got a pair of fake boobs.

In the film bullets approach in slow motion a series of glistening roundels, resembling condoms just taken out of their paper wrappings. Most of the bullets go right through, leaving a clean hole. But the last roundel in the film collapses slowly, wrapping itself around the bullet like a blanket on a laundry line hit by a wayward football. It is a piece of artificially bred human skin, reinforced with eight layers of transgenic spider silk, the material spiders produce to spin their webs.

Translated from the original Dutch, exclusive to Longform.org.

What is it about terminating half a twin pregnancy that seems more controversial than reducing triplets to twins or aborting a single fetus? After all, the math’s the same either way: one fewer fetus. Perhaps it’s because twin reduction (unlike abortion) involves selecting one fetus over another, when either one is equally wanted. Perhaps it’s our culture’s idealized notion of twins as lifelong soul mates, two halves of one whole. Or perhaps it’s because the desire for more choices conflicts with our discomfort about meddling with ever more aspects of reproduction.

An investigation into The End.

The disappearance of a legendary scavenger could have dire consequences for a swelling human population.

A trip to the Cannabis Cup serves as a backdrop for the story of how the War on Drugs revolutionized the way marijuana is cultivated in America.

On the development of South Korea’s New Songdo and Cisco’s plans to build smart cities which will “offer cities as a service, bundling urban necessities – water, power, traffic, telephony – into a single, Internet-enabled utility, taking a little extra off the top of every resident’s bill.” The demand for such cities is enormous:

China doesn't need cool, green, smart cities. It needs cities, period -- 500 New Songdos at the very least. One hundred of those will each house a million or more transplanted peasants. In fact, while humanity has been building cities for 9,000 years, that was apparently just a warm-up for the next 40. As of now, we're officially an urban species. More than half of us -- 3.3 billion people -- live in a city. Our numbers are projected to nearly double by 2050, adding roughly a New Songdo a day; the United Nations predicts the vast majority will flood smaller cities in Africa and Asia.

An investigation by ProPublica, PBS Frontline and NPR has found that medical examiners and coroners have repeatedly mishandled cases of infant and child deaths, helping to put innocent people behind bars.

A cultural history of feral swine.

Dr. Drew has turned addiction television into a mini-empire, offering treatment and cameras to celebrities who have fallen far enough to take the bait.  His motivations, he insists, are pure:

Whether the doctor purposefully cultivates his celebrity stature for noble means or wittingly invites it because he himself likes being in the spotlight, he is operating on the assumption that his empathetic brand of TV will breed empathy instead of the more likely outcome, that it will just breed more TV.

On therapists who help people stay in the closet.

Eagleman, a neuroscientist, describes how groundbreaking advances in the science of brain have changed our understanding of volition in criminal acts, and may erode the underpinnings of our justice system.

A dispatch from the early days of AIDS:

It is as relentless as leukemia, as contagious as hepatitis, and its cause has eluded researchers for more than two years.

A brutal story from the Times’ cub Metro reporter:

''We're dying,'' he said. ''Why is this happening? Is it because we loved each other too much or not enough?"

It was the worst AIDS crisis in years—until it wasn’t.

Pathologists and epidemiologists take on “the confounding killer known as AIDS.”

“Is he Socrates or Mengele?” On the late Jack Kevorkian.