Two-spirit relationships and identities

Anthropologists have found that, across the globe, nearly every culture embraces marriage customs

Despite these commonalities, different cultures have distinct customs, such as the number of people who can be married at one time, the types of marriage partners allowed, and whether elaborate ceremonies are observed. Families can range from the smaller nuclear unit to extensive multi-generation families and households.

Interracial and same-sex marriages have both been illegal at certain times during US history

June 12 marks Loving Day, the date when interracial marriage was legalized in 1967. A brave Virginia couple fought back against anti-miscegenation laws, which were finally struck down by the Supreme Court. The Court also ruled for the protection of same-sex marriages in 2015.

Matrilineal societies—where women led households—were common among Northeastern natives

Such societies also viewed women as leaders in spiritual matters. Both men and women held political roles as clan leaders and worked in tandem with an advisory council.

Native voices share their histories along the Lewis and Clark National Historic Trail

Tribal historians recount their peoples' histories and perspectives on the Lewis and Clark expedition, offering an Indigenous narrative of the lands, encounters, and legacies that shaped the journey.

A larger share of LGBTQ+ individuals use dating apps than their straight counterparts

Roughly a quarter of LGBTQ+ adults reported using a dating app in the past year as of 2022. The trend seems to have persisted as the years have gone on, with apps like Grindr geared toward the community seeing significant revenue growth in recent quarters as of 2025.

How Eurovision became a part of queer culture

Academic Matt Weaver analyzes how the Eurovision Song Contest's camp aesthetics, inclusive mission, and international stage have attracted a sizeable gay following and how that audience is sometimes at odds with the political positions of the contest's competing nations.

When did humans start kissing romantically?

This article explores the ancient roots of romantic kissing. Current archaeological evidence dates sexual and romantic lip kissing to about 2,500 BCE. A Mesopotamian clay tablet from the time shares a tale of two deities locking lips. There's also...

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.

See how migrating tribes reshaped Europe after the fall of Rome

During the early Middle Ages (c. 300–700 CE), groups such as the Franks, Vandals, Visigoths, and Suebi migrated into former Roman territories. Their movements transformed European politics and culture while preserving many Roman traditions.

Early 20th-century ID cards protected trans people in Germany using hormone therapy

A small number of passes were granted by the German police—with clinician support—between 1909 and 1933 that nominally allowed them to dress in ways that matched their gender identity, use experimental hormone therapies, and even receive early sex reassignment surgeries. At the time, individuals could be charged with "public nuisance" without the pass.

A comprehensive state-by-state report of LGBTQ+ rights in America

The State Equality Index (SEI) is a comprehensive state-by-state report that provides a review of statewide laws and policies that affect LGBTQ+ people and their families. The SEI rates all 50 states plus Washington, D.C. in six areas of law. Each...

The US has 575 federally recognized tribal nations, each a sovereign government

Tribal governments are sovereign, with authority to pass laws, run courts, and levy taxes on their lands. Unlike cities or counties, they are not created by states. Their sovereignty predates the United States itself and is recognized in the Constitution, treaties, and federal law.

There are stigmas attached to tattoos

Although tattoos are fairly common in the US, some taboos remain. A 2017 study in the Journal of Social Psychology found discrimination against tattoos is alive and well, and that even individuals with tattoos associate them with negative stereotypes.

Exploring a new generation's search for religion

Amid the historical trend toward secularization, young people still search for religion. Lamorna Ash wrote a book on this revival of interest in faith and spirituality, exploring the importance of community and identity in religious conversion. Listen to her experiences and investigations in this podcast.

How to bridge political divides

Can people who believe in opposing ultimate views of the world really live in peace together? That's a core requirement of individuals living in pluralistic societies. Law professor Samar Ali and public affairs strategist Clint Brewer don't agree on much, but they're great friends. In this TED Talk, the two share why political polarization in the US isn’t as intractable as we might think. Learn some tips for getting along in the free world here.

Sylvester's 'You Make Me Feel (Mighty Real)' is a definitive LGBTQ+ anthem

The 1978 dance hit was all about self-acceptance, inspired by the artist's difficult experience growing up gay in a Pentecostal church. The song has influenced numerous contemporary artists and inspired an off-Broadway musical.

Humans have used geothermal resources for thousands of years

In North America, Indigenous peoples viewed hot springs as sacred places and used them for medicinal purposes, cooking, and surviving cold weather. The ancient Greeks and Romans also viewed them as sacred, partaking in hot mineral baths to relieve ailments and using them for space heating.

Indigenous women are murdered at 10 times the rate of all other ethnicities in the US

Murder is the third-leading cause of death among Indigenous women, who are also 2.5 times more likely to experience violence than any other group. More than 4 in 5 Indigenous women have experienced violence in their lifetime.

The story of Sporus, the castrated boy who married Emperor Nero

Ancient Romans’ views of homosexuality are quite different from Western understandings. Nero was an emperor is infamous for his cruelty, and appears to have heaped that cruelty upon Sporus, a boy he fell for and married in a public ceremony. As a slave, Sporus was held captive at the whims of Nero and subject to the class-based rules on same-sex relationships in ancient times.

The holiday has evolved alongside its participants' cultural identities

The Day of the Dead blends various traditions, including Aztec myth, Mexican heritage and Chicano identity. That makes for a complex and evolving holiday. This conversation between Cynthia Vidaurri, a Smithsonian folklorist, and Lalo Alcaraz, a cultural consultant for “Coco,” analyzes how the varied influences have created the modern holiday.

Sex determination isn’t all XX and XY

We’re generally taught that chromosomes determine an animal’s sex, but it is way more nuanced than that. Watch this 12-minute video to find out how.

Sartre and de Beauvoir had an open romantic relationship

The two figureheads of existentialist thought were romantic partners, though they had a publicly open relationship and never lived together. As de Beauvoir says in the interview below, "third persons knew our relationship dwarfed any we could have with them."

New ways of seeing the cosmos have redrawn the map of human identity

From Galileo’s crude spyglass to the James Webb Space Telescope, each technological leap has expanded our observational reach and redefined philosophical and moral conceptions of our place in the universe. Identifying signs of life through the study of exoplanet atmospheres would represent the next great revolution.

The true origins of the Western tumbleweed

Tumbleweeds are iconic features of classic American westerns, seen blowing across a desert landscape as a cowboy walks into town. But this species isn't native to the US Southwest. In fact, it was unintentionally imported from Russia. As farmers loosened the ground in the West, they created the perfect breeding ground for the Russian thistle tumbleweed to flourish there. Watch more on its history here.

Long-lost sisters meet for the first time and accidentally show up in the same dress

Two women aged 51 and 63 discovered they were sisters after taking a 23andMe test. Both born in Russia, the siblings immigrated to the US around the same time. When the time came to finally meet, they coincidentally arrived wearing the same outfit.

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.

See how each of the more than two million known species relates to each other—and to common ancestors—in this zoomable tree of life.

The US Constitution is widely regarded as the longest-standing written national constitution still in force—see how it has influenced rights worldwide.

44% of Americans say they pray at least once a day—discover how your state's religiosity stacks up against the rest of the country.

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.

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

For centuries, it was common to sleep in two shifts: a few hours at the beginning of the night, and a longer period beginning around midnight

Cultural norms about how to handle the bodies of loved ones in communities in West Africa have hampered Ebola responses.

The American cockroach is actually from Africa, an apparent hitchhiker aboard ships carrying enslaved people, with evidence suggesting the bug may have arrived in the New World as early as the 1600s.

The first line of 'immortal' human cells, which can divide indefinitely and are used in scientific research, was nonconsensually taken from a Black woman.

Before humans, the Soviet Union and the United States sent animals—including apes, dogs, and cats—to space during the Space Race.

Georgia O'Keeffe's flower paintings are often assumed to be sexual, though the artist claimed she was simply interested in highlighting the beauty of flowers that most people neglect

US housing costs have risen by roughly 175% between 1991 and 2026—but a growing number of Gen Zers are becoming homeowners anyway. In 2025, 4% of homebuyers were Gen Z, up from 3% the year before.

See a 3D reconstruction of Tenochtitlan, the Aztec capital that was home to an estimated population of 200,000 to 400,000.

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.

The hormonal disorder PCOS was renamed PMOS in 2026, a move designed to improve care and research by shifting the focus to the hormonal causes of this condition that affects 1 in 8 women.

Lesser-known phobias include turophobia, or the fear of cheese, and nomophobia, the fear of being without your cell phone.

Graffiti dates back to at least ancient Pompeii, where citizens scrawled messages to one another on public walls

The Great Salt Lake's distinct dual coloration results from high-salinity organisms that only live in the northern portion and produce a purple protein.

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

Brandi Chastain, the star of the 1999 US victory over China in the 1999 Women's World Cup, was a last-second choice to take the penalty kick that sealed the victory.

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.

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

SpongeBob exemplifies Aristotle's philosophy for living well because he understands that happiness doesn't come from external factors like money, recognition, or power.