Theos Bernard's book on yoga formalized the practice for many Americans

How yoga philosophy inspired Thoreau

In the 19th century, yogis traveling in America emphasized the practice as a philosophical one rather than a purely physical act. Like many Americans at the time, including his friend Ralph Waldo Emerson, Thoreau was intrigued by yoga's mysticism, once writing, "I cannot read a single word of the Hindoos without being elevated."

An 1893 speech in Chicago set the stage for yoga in the US

Swami Vivekananda, a Hindu monk, spoke to the World’s Parliament of Religions, addressing those in attendance as his “sisters and brothers of America.” The speech—and Vivekananda’s subsequent lecture tours—introduced many in the West to Hinduism, setting the stage for the interest in yoga that would follow in the next century.

Richard Hittleman brought yoga to TV

"Yoga For Health" was a 1960s television show that sought to make yoga accessible for everyday Americans. Richard Hittleman, the show's host, walked viewers through basic postures, introducing them to the practice's therapeutic benefits. "We know that within us there's great forces, and great power, and great beauty," he says in this 1961 episode, "and the idea is to bring it out."

BKS Iyengar emphasized yoga's physical aspect

The guru’s 1966 book “Light On Yoga” included detailed instructions for over 200 postures, presenting a version of yoga that emphasized it as a form of exercise with controlled breathing, believing that its physicality was the key to unlocking its spirituality. The book was the first mass-market manual to show the poses, furthering the Western impression that yoga was primarily about exercise.

Yoga dates back to about 1500 BCE

The earliest known mention of the word is in the Rig Veda, one of the four canonical Hindu texts. Rishis, or sages, then documented its evolution in the Upanishads, the Hindu scriptures. Much of the modern understanding of Yoga comes from “Yoga Sutras of Patañjali,” which outlines the practice’s eight elements, including physical postures and breathwork.

Traveling yogis spread the practice across the US

After a 1923 Supreme Court decision ruled that Asians were ineligible for citizenship, many South Asian immigrants had relatively few job opportunities and began moving around the country teaching yoga and spirituality. At the time, yoga was viewed less as a physical practice and more as a mystical one, something many of the teachers embraced to attract students. South Asians regained the right to citizenship in 1946.

Practices and beliefs from Hinduism, Buddhism, and Jainism influenced yoga

Yoga scholars Mark Singleton and James Mallinson’s study, “Roots of Yoga,” collects over 100 core texts on the subject. They found that many different ethnicities and religions practiced yoga in antiquity; Singleton says that the practice was a “floating technology between various religious systems.”

Bikram Choudhury's abuse dismantled his yoga empire

The guru popularized a form of hot yoga that followed a 26-point script. In the process, he became incredibly wealthy and ostentatious. In the early 2010s, formal accusations against him began, ranging from harassment to rape. He fled the US in 2017 to avoid paying his former lawyer a sexual harassment settlement. In the US, the "Bikram yoga" style has been divorced from its namesake but is still practiced, often as "hot yoga." Bikram still teaches yoga outside the country.

Yoga has become a popular tool for veterans dealing with PTSD

As the practice has become more popular in the West, it’s been incorporated into the Department of Veterans Affairs’ treatment plans for post-traumatic stress disorder. Veteran instructors say that although yoga and the military might seem like odd fits, they share many commonalities, including a rigorous approach. (Some readers may experience a paywall.)

In 1927, Oklahoma’s governor was criticized for his associations with yoga

Governor Henry Johnston was already dealing with criticism regarding his administration. When it was revealed that he'd attended a lecture on “Divine Yoga,” given by Deva Ram Sukul, a traveling guru, his opponents leaped at the opportunity to use Johnston's budding interest in non-Western traditions (and, in some cases, the occult) against him.

Steve Jobs mandated that a legendary book on yoga be distributed at his memorial service

The iconic entrepreneur died in 2011, but before he did, he planned the details for his memorial service. One of the instructions was to leave attendees with a parting gift: a brown box that contained Paramahansa Yogananda’s book “Autobiography of a Yogi,” a book he read as a teenager and then returned to annually.

William James laid the foundation for psychology as a scientific discipline in the US

Though initially trained in painting, James would help establish Harvard's psychology department as a distinct science rather than an extension of philosophy. He taught one of the first psychology courses in America and is credited as one of the founders of American Pragmatism.

The Martha Graham Technique, explained

It's considered the first codified modern dance technique and a foundational pillar of American dance. In this 1975 instructional film, its namesake explains how the Graham Technique works. "As you can see," she notes, "the body is capable of almost endless variations and combinations once it is trained."

Bill Bowerman brought running for fitness to America

Nike cofounder Bill Bowerman once cowrote a book with a doctor, W.E. Harris, called “Jogging.” Published in 1967 by New York, Grosset & Dunlap, it introduced America to the idea of running for health, instead of just sport—and kicked off the fitness frenzy of the 1970s that fueled Nike’s early success. (Some readers may experience a paywall).

William HH Murray spurred American interest in rustic retreats

Murray's 1869 self-help book, "Adventures in the Wilderness; or, Camp-Life in the Adirondacks," encouraged urban residents to embrace outdoor activities, depicting upstate New York as an unsullied paradise free from the chaos of city life.

The US paperbacks of Tolkien's books led to the popularization of fantasy

Tolkien initially resisted publishing his books in paperback because of the stigma attached to the format, with many believing that serious fiction was first published in hardback. When Ballantine Books eventually published the “Lord of the Rings” trilogy in 1965, though, the genre became more popular, leading Ballantine to continue publishing adult fantasy and expanding the genre’s bounds.

Joan Didion's 1967 'Slouching Towards Bethlehem' laid the hippie counterculture bare

Didion wrote a detailed account of living alongside hippies in San Francisco's Haight Ashbury area in the 1960s. Beyond their style and politics, Didion uncovered chaos, with one particularly shocking interview of a 5-year-old on LSD. Her stories challenged the movement's message of freedom and utopia in California.

How the placebo effect became mainstream

Contemporary patients and medical students take the placebo effect for granted, as its a standard element in most drug trials. But the concept was only first debated and standardized in the 1950s after a ground-breaking 1955 paper by medical...

A young Basquiat was fascinated by the book 'Gray's Anatomy'

At 7 years old, Basquiat was hit by a car while playing stickball. While in the hospital, his mother gave him a copy of Henry Gray’s medical reference book “Gray’s Anatomy” to help him better understand his recovery. The book fascinated the young Basquiat, who’d later incorporate bodies and anatomy into his art.

He was one of the first writers to cover surfing

For his 1872 travelogue “Roughing It”, Mark Twain visited Hawaii and described a then-peculiar sport: surfing. He even recalls his own attempts to catch a wave, writing, “I got the board placed right, and at the right moment, too; but missed the connection myself. The board struck the shore in three-quarters of a second, without any cargo, and I struck the bottom about the same time, with a couple of barrels of water in me.”

Gorgeous George was American pro wrestling's first superstar

George owed his popularity to the in-ring persona he created: a haughty, pretentious Anglophile who couldn't believe he had to stoop to fight his opponents. This 1950s film, taken from the "Wrestling From Hollywood" show that popularized professional wrestling in the US, perfectly illustrates what made this "heel" so compelling.

'The Boy who Went to Heaven': A bestselling, but fabricated, story

In 2010, a book a boy’s experience of visiting heaven following a horrific car crash kicked off a surge of “heaven tourism” books. The account, however, turned out to be fabricated by his father, revealing a complicated mix of faith, greed, and a kid caught in the middle.

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

The first US Olympic basketball team was made up of amateurs from company teams

In 1936, the first year the Olympics featured basketball, the US squad featured players from two companies: an oil refinery in Kansas and Universal Pictures in Hollywood.

A comprehensive taxonomy of American tacos

Tacos may be a Mexican food, but they're wildly popular in America and in a number of different styles. This lengthy guide from Serious Eats was compiled after visiting more than 1,000 taco shops. It breaks down the differences between the many variations on the form (including breakfast, barbacoa, and Deli Mex) you'll encounter in different regions of the country. We don't recommend reading on an empty stomach!

Audit a Yale course on great American novels after 1945

Wish you'd paid more attention back in college? There's good news: You can still pop into some college classes, without having to pay tuition (or write term papers). This course from one-time Yale professor Amy Hungerford walks through the great American novels after World War II, including works from Toni Morrison, Philip Roth, Cormac McCarthy, and more.

'Shogun,' a 1980s TV series, helped popularize sushi in the US by stimulating an American interest in Japanese culture.

'Grand Canyon of the Yellowstone,' a work by American painter Thomas Moran, inspired Congress to establish Yellowstone National Park.

Quincy Jones' 'Big Band Bossa Nova' helped introduce bossa nova—a jazz-influenced Brazilian genre—to the US

Trace how the Bill of Rights, inspired by centuries of political theory, took shape between 1774 and 1789.

See the most iconic photos from four decades of LIFE magazine

'Saturday Night Fever,' the 1977 film that introduced disco to the mainstream, was based on a fabricated magazine story.

American dance legend Martha Graham, sometimes called 'the Picasso of dance,' refused to perform at the 1936 Olympics in Berlin and conceived the piece 'Chronicle' in response to the experience.

NBA superstar Victor Wembanyama spent the 2025 summer training with monks in central China to enhance his body and mind.

A Yale student wrote a profound essay about the consulting industry's influence on elite college students that was published in a book of her writing after she died in a post-graduation car accident.

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

While the first exchange-traded fund (a 'basket' of different assets that can be bought and sold on a stock exchange) in the US only launched in 1993, the global ETF market has grown to more than $10T in the short time since.

A small portion of The Winstons' 'Amen, Brother,' an obscure '60s gospel record, is the basis for thousands of hip-hop tracks, making it one of the most sampled records ever that's informally known as 'the Amen break.'

How the most famous Ebola book, The Hot Zone, which sold 3.5 million copies and was translated into 30 languages, got aspects of the disease so wrong.

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

Read a deep dive on the 'all-purpose healing' peptide BPC-157.

After 25 people used virtual reality headsets to practice flying with virtual wings—flapping their arms—their visual cortex responded to the wings almost as if they were real arms, treating them as body parts.

Warren Buffett's former professor Benjamin Graham is known as the 'father of value investing,' a strategy in which investors seek to buy stocks trading below their intrinsic worth.

Poison ivy was sent to Europe in the 1600s as an exotic, ornamental oddity, where it was purposefully grown in the English royal gardens at Kew, the Faculty of Medicine in Paris, and a few other locations.

Objects can be 3D printed with light by projecting 2D computerized tomography (CT) scans onto rotating cylinders of resin, which solidify upon exposure.

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.

Budweiser stores yeast derived from the original 1800s strain in a secret bunker, which only the Head of Yeast Management can access—not even the CEO

Take a 3D tour of the Hajj, Islam's annual pilgrimage to Mecca, undertaken by over 1.5 million Muslims.

The name 'Silicon Valley' arose from the founding of Shockley Semiconductor Laboratory in Fairchild Semiconductor in 1956-57, founded near Stanford University in Palo Alto

The term 'algorithm' originated from the Latinized name of al-Khwārizmī, a 9th-century mathematician whose works introduced Arabic numerals and the decimal-based numeral system to Europe and whose treatise 'Al-Jabr' gave algebra its name.