Twain claimed to possess 'mental telegraphy'

Twain was a notoriously bad investor

After becoming a famous writer, Twain invested in railroad stocks, a magnetic telegraph, and a printing press that weighed four tons. Eventually, he founded his own publishing company, which ultimately led to his bankruptcy. “He is, in business,” one lawyer said, “just a big overgrown boy.”

Mark Twain was an early influence on stand-up

The writer’s live lectures looked a lot like modern stand-up comedy specials. Twain’s world tour in the 1890s featured 90-minute performances in which he stood alone on the stage, delivering long, comedic monologues with his hand perched on his chin.

19th-century Americans used technology to try to prove the existence of ghosts

In the 19th century, following technological advancements like the telegraph, phonograph, and others, efforts were made to capture proof of ghosts. These technologies seemed supernatural in their own right and emerged at the same time Spiritualism took off in the US, resulting in new approaches to connecting with the dead.

Mark Twain spent decades feuding with the US Postal Service, convinced its costs and regulations were bureaucratic overreach.

In 1898, Nikola Tesla wowed a crowd by controlling a boat with no visible connection

Some onlookers thought it was a trick, such a a monkey being inside the boat, rather than mind control or some other metaphysical phenomenon. In reality, Tesla was pioneering radio waves, proving wireless control was possible.

William Mumler’s spirit photography stunned and bewildered the public

William Mumler’s most famous work is a portrait of Mary Todd Lincoln accompanied by the ghost of her deceased husband, Abraham Lincoln. Other subjects of Mumler's photos claimed that the spirits standing beside them resembled their loved ones. Mumler’s method was never officially proven and continues to mystify viewers.

James Garfield's 79-day decline hooked America on news updates

After he was shot while departing Washington, DC, in 1881, the president was treated for his wounds and cared for at the White House. Since 1861, telegraphs had spanned the continent, and the Associated Press pooled sources to share telegraph news. The public, seeking updates on the president's condition, was able to receive them regularly for the first time due to this network, laying the foundation for the continuous news cycle.

Salvador Dalí believed he was his own dead brother, who had died nine months before he was born

Salvador Dalí believed he was his own dead brother

Dalí's parents found the miracle of his birth nine months after his brother died to be profound, telling him he was his brother's reincarnation. Dalí carried this belief into his adult life and often cited its deep influence on him, including his preoccupation with death and mortality.

Whitman led a Lincoln lecture late in life

Whitman toured several cities with “The Death of Lincoln,” a lecture series about the slain president that sought to establish him as a crucial figured in American history. The talks attracted famous figures, including Mark Twain and General William Tecumseh Sherman.

A 'Simpsons' writer on the show's inadvertent predictions

Some have noted that "The Simpsons" has accurately anticipated a number of events years before they happened. In this interview, showrunner Al Jean explains how these unintentional predictions came about and why he believes the events were not so much visions of the future as educated guesses.

What Stephen Hawking said about time travel

When renowned theoretical physicist Stephen Hawking did not rule out the possibility of time travel in his posthumous book Brief Answers to the Big Questions, many hopefuls got excited. But, unfortunately for them, Hawking believed that yet-to-be discovered laws of physics will prove time travel impossible. This piece outlines some practicalities about the speed of light and wormholes that lend way to Hawking’s prediction.

The ancient Greeks and Romans viewed comets and meteors as divine omens

Both considered the appearance of a comet or its fragments as a precursor to significant events, such as the birth of a notable figure or the death of a ruler. One observed in 44 BCE was believed to be a sign of the deification of Julius Caesar after his assassination.

Lady Wonder, the horse with supposed clairvoyant powers

Lady Wonder became widely known as a horse that shared her special powers by spelling out words by using blocks with letters. She reportedly helped solve the case of a missing young boy while also offering advice and sports predictions.

Why one Emily Dickinson biographer believed she had epilepsy

Lyndall Gordon's "Lives Like Loaded Guns" points to a "handicap" referenced in several Dickinson poems. According to Gordon, the condition was so stigmatized during Dickinson's life that it made her reclusive. In this NPR interview, Gordon explains why she believes the theory is the best explanation for Dickinson's notorious isolation.

Read an email Steve Jobs wrote himself in 2010

Steve Jobs apparently liked to email himself to save his thoughts. This archival email, written the year before he died, shows Jobs expressing gratitude and wonder for the world and its creative people.

Clever Hans was a 1900s horse that was believed to be able to solve math equations, tell time, and read and comprehend German, until a psychology student discovered how he got his answers.

A theory about Pink Floyd and 'The Wizard of Oz' was popularized by a 19-year-old

Pink Floyd’s seminal album “Dark Side of the Moon” eerily synchronizes with “The Wizard of Oz,” offering a psychedelic soundtrack for the movie. Journalist Charlie Savage popularized the phenomenon when he was 19. He’d go on to write for the Boston Globe and New York Times winning a Pulitzer Prize.

The concept of phantom limbs, the perception that amputated limbs are still present, dates back to a French military surgeon in the 16th century.

A joke about mercury in an elevator led to the invention of emoticons

A false message about mercury contamination was posted in response to a physics problem on Carnegie Mellon's discussion board in 1982, which some users took seriously. The need to indicate which messages were jokes led to the creation of facial expressions using special characters.

Inside 'Blood Meridian' author Cormac McCarthy's library of 20,000 books

The reclusive writer published 12 novels and taught himself stonemasonry and quantum physics, among myriad other skills and subjects. Since he died in 2023, scholars have been mining his personal library for lessons on his influences, interests, and more.

In 1939, baseball star Lou Gehrig delivered his 'Luckiest Man' speech after retiring due to a health condition

Gehrig's diagnosis of amyotrophic lateral sclerosis, a disease that now bears his name, forced him to retire early. Weeks later, he spoke with gratitude and stated, "For the past two weeks, you have been reading about a bad break. Yet today I consider myself the luckiest man on the face of the earth." Gehrig died at the age of 37, about two years later.

In 1999, King survived a near-fatal car accident

In 1999, a distracted driver hit writer Stephen King as he walked on the side of the road near his house in Maine. He recounts the event in his famous memoir, "On Writing." This interview with Katie Couric took place five months after the accident and shows King in a fragile state, wondering about the long-term effects on his mind. When Couric asks if he'll try to work the incident into his work, he smiles. "Sooner or later," he says, "everything goes in."

Hughes testified before Sen. Joseph McCarthy’s Subcommittee on Investigations

In 1953, the writer was interrogated by the Subcommittee’s chief counsel, Roy Cohn, about communism and its impact on his work. Cohn quoted lines from poems like “Goodbye, Christ” and “Ballads of Lenin,” but Hughes denied that he was a communist, explaining that poetry should not be taken literally. “That is a poem,” he told Cohn. “One can not state one believes every word of a poem.”

Writer Gay Talese has unorthodox practices for researching his stories

Since Talese began working at the New York Times in the 1950s, he has woven eccentric details into his stories about the people he covers. His immersive journalistic methods, such as living in a nudist colony, sparked controversy, but also helped him uncover aspects of people's lives.

Terminal lucidity is the phenomenon of sudden, heightened mental clarity when on the verge of death

The "Let's Talk Near Death" podcast explores phenomena around the end of life, inviting guests to recount their own experiences. This episode focuses on the phenomenon known as "terminal lucidity," where patients experience clarity, vivid memory recall, and more, typically following a heart attack, stroke, or other trauma.

In 1939, baseball star Lou Gehrig delivered his inspirational 'Luckiest Man' speech after retiring due to the health condition that now bears his name.

Read Charles Darwin's description of his tinnitus suffering

When he was 57 years old, Darwin wrote to a new doctor about his suffering from a variety of maladies, including "singing of ears", vomiting, recurring flatulence, vomiting, and more. He noted how he believed his stress contributed to these symptoms.

'There cannot be mental atrophy in any person who continues to observe, to remember what he observes, and to seek answers for his unceasing hows and whys about things.'

-Alexander Graham Bell (1847-1922)

Panpsychism suggests that all matter possesses consciousness

The theory describes consciousness as a fundamental, ubiquitous property, rather than separate or emerging from matter. Cosmopsychism posits that the universe is conscious, while some critics argue that consciousness itself may be an illusion.

Before writing 'Walden,' transcendentalist Henry David Thoreau nearly burned down his hometown with a campfire that grew out of control.

Abraham Lincoln was almost assassinated weeks before his inauguration as he traveled from Illinois to DC through Baltimore in 1861; it took two independent claims for Lincoln to be convinced the threat was real

Against his wishes, Albert Einstein's brain was removed before his cremation, and the pathologist responsible stored it for decades in mason jars within a beer cooler.

The first horror movie is believed to be George Méliès' 1986 short 'The Haunted Castle,' which pioneered the use of special effects

A researcher recently discovered an interview from 1967 between groundbreaking journalist Joan Didion and the Grateful Dead, years before the band became an institution.

After her fellow cult members tried to kill her with an LSD-infused hamburger, one member of the Manson Family, the murderous cult led by Charles Manson, decided to testify against the group's leader.

In 2009, the nation was gripped by the story of a missing young boy who was believed to be floating over Colorado in a homemade balloon, until it was revealed that he was at home the whole time.

Famed poet TS Eliot rejected the manuscript for George Orwell's political fable 'Animal Farm,' writing that its criticism of authoritarianism was not 'the right point of view.'

Many legends about George Washington, including his supposed wooden teeth and the story of cutting down the cherry tree, lack evidence.

For centuries, Niagara Falls has been a magnet for daredevils seeking to conquer one of nature's most powerful wonders, with its 200-foot drop and water rushing at 32 feet per second with 280 tons of force.

English mathematician Ada Lovelace wrote the first computer algorithm a century before computers existed and hypothesized that computing devices would one day be able to compose music—foreseeing the generative AI systems of today.

Browse a detailed visual analysis of over 200,000 similes—comparisons that often use 'like' or 'as'—from popular fiction to see how frequently writers the same idiomatic expressions.

Discover the catastrophic consequences of a failure of the US electrical grid—something that is more likely than many Americans think.

After NASA's Voyager 1 captured Earth as a single pixel as it left the solar system in 1990, astronomer Carl Sagan used the image to reflect on humanity's fragility and the responsibility to protect 'the only world we've ever known.'

In 2018, 26-year-old missionary John Allen Chau was killed by tribesmen after attempting to reach and evangelize on India's isolated North Sentinel Island

20,000 letters to the advice columnist 'Dear Abby' provide insight into prevailing sex, religion, and LGBTQ fears, anxieties, and concerns from the 1950s onward.

Chaos theory—informally known as the butterfly effect—is the reason why weather forecasts are presented with probabilities rather than certainties.

Some researchers have labeled nomophobia, the fear of being without your phone, as 'the phobia of the 21st century.'

Shooting stars, or meteors, are fragments of asteroids and comets that burn up as they enter Earth's atmosphere, creating streaks in the sky called meteor showers.

The word 'jazz' evolved from 'jasm,' 19th-century American slang for 'energy'