Many religions have core majorities in certain countries

Visualizing the spread of five major religions across the world

Every major religion has a story that started in a specific place before growing to reach millions. This quick video depicts an illustrated map over the last 5,000 years, showing how Hinduism, Buddhism, Judaism, Christianity, and Islam grew from their humble beginnings.

Data indicates a strong concentration of religious people live in the American South

The Northeast and West Coast tend to be less religious. Mississippi is the most religious state, with 50% of adults classified as highly religious. Vermont is the least religious at 13%.

Charting the countries with large Sikh populations

While the vast majority of contemporary Sikhs live in Punjab, India, millions have moved elsewhere in the world, especially in anglophone countries. This chart shows which countries host the largest communities of the Sikh diaspora in the world.

View the countries with the most internet users, including 94% of those in high-income nations

As of 2025, the four most populous nations—China, India, the US, and Indonesia—are also the ones with the most internet users, collectively accounting for almost half of the 6.04 billion internet users worldwide. This suggests that population size, rather than adoption rate, is a better predictor of online activity.

Countries with either very low or very high religious diversity tend to be more peaceful

Research found a correlation between a country's relative stability and whether it has either very low or very high levels of religious diversity. Countries in the middle range—with moderate diversity and active competition between groups—show higher levels of conflict.

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.

35% of Americans have moved on from their childhood religion

A new Pew Research analysis finds that most Americans still identify with their childhood religion, but 35% have switched or left entirely—often due to lost belief or drifting away.

Mapping the Middle East showing Sunni and Shia populations by country

France24's interactive visualization shows where each branch of Islam predominates across the region, from Iran's Shia majority to Saudi Arabia's Sunni dominance. The map helps make Middle Eastern politics (and conflicts) more legible.

A map of religious radio stations in the US

A Pew analysis of 440,000 hours of broadcasts found more than 4,000 faith-based AM/FM stations reach 98% of American adults (out of a total of 17,000 licensed stations). Ownership is highly concentrated, with the top 30% of stations belonging to large groups; Educational Media Foundation's K-LOVE and Air1 networks alone hold hundreds of licenses nationwide.

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.”

Approximately 10% of American K-12 students are enrolled in private schools

Around 75% of those students attend religiously affiliated institutions. In Hawaii and Washington, DC, 19% of students attend private schools, the highest enrollment percentages in the country.

Religion dominated many aspects of Colonial life and was enforced by the government

Eight of the 13 British Colonies in America had official, established churches, and laws mandated that everyone attend a house of worship and pay taxes that funded ministers' salaries.

86% of the world's 12,321 nuclear warheads are held by just two countries

As of early 2026, the US and Russia together control about 86% of the world's more than 12,000 nuclear warheads—over 9,600 in military stockpiles. None of the seven other nuclear nations holds more than 600.

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.

Federal systems are a minority among the United Nations' 193 members

Of the United Nations' 193 member countries, roughly two dozen use a federal system, dividing power constitutionally between national and subnational governments. This group includes the United States, India, Canada, Germany, and more. The video walks through examples of how these states operate.

The United States is one of only around two dozen countries with a fully federal system of government, in which power is divided between national and state governments.

Countries that celebrate Easter

Easter is observed as a national holiday in more than 95 countries, with traditions varying wildly—from water fights in Hungary to crime novel reading in Norway—reflecting how thoroughly Christian practice has mixed with local culture.

Nearly 70% of Muslim Americans always donate to charity during Ramadan

Zakat, one of the core pillars of Islam, directs Muslims to redistribute their wealth and give to the poor. This pillar is commonly honored during Ramadan and likely motivated by the practice of fasting, which encourages gratitude and compassion for those who are less fortunate. Other spikes in charitable giving are seen during the holiday of Eid al-Adha and at the end of the financial year.

Degrees in business, law, and health are among the most common US master’s degrees

While popular worldwide, these degrees aren’t necessarily the most popular in every country. In Japan, for instance, engineering is the most popular subject for master’s degrees. This data visualization ranks the most popular master’s degrees in dozens of countries around the world.

Hanukkah is one of 8 major Jewish holidays

This calendar, maintained by the Reform Judaism organization, not only shows when each holiday is to be celebrated in the current year, but also includes short histories and common rituals.

How the Navajo nation works

Tribal reservations control over 89,000 square miles of land in the US, roughly 2.5% of all US land. While individual tribes are recognized as sovereigns, they are not viewed as countries by the US government. Learn how the Navajo nation in...

One ethnic group in Kenya is responsible for most of the country’s running success

Both the men’s and women’s world record holders in the marathon hail from the same region in Kenya. They’re Kalenjins, a minority ethnic group responsible for nearly 73% of the country’s Olympic gold medals in running. Studies have determined that the success is thanks to high-altitude training, a healthy diet, and a tradition of excellence.

The primary language in Iran is Persian, also called Farsi

Spoken by the majority of Iran's 90 million people, Persian is one of the world's oldest continuously spoken languages, with a literary tradition stretching back over a thousand years. It is also widely spoken in Afghanistan and Tajikistan.

All humans share 99.9% of the same DNA

Of the 3 billion base pairs that make up the human genome—the complete set of genetic material for the species—the diversity of humans is the result of variations in about 3 million molecular bases. The closest nonhuman genetic match is the chimp, with 98.8% similar genetics.

Cult classics are often defined by their polarization

Films that reach cult status are far from universally beloved. In fact, fans of cult movies often become such passionate supporters because a title has been lambasted by mainstream audiences. Stat Significant breaks down some of the most polarizing films of all time based on the data behind audience scores. It should come as no surprise that many in the top 10 are considered cult franchises.

The US dollar is the most widely circulated currency in the world, and is involved in nearly 90% of global transactions

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

More than 5 million Americans have more than one autoimmune disease

Overall, about 4.6% of the US population—15 million people—have an autoimmune condition. Some common examples include rheumatoid arthritis, psoriasis, type 1 diabetes, Grave's disease, and autoimmune thyroiditis.

As of 2022, just 0.5% of installed renewable energy capacity worldwide is geothermal

Despite being able to generate electricity regardless of the weather, solar (28%) and wind (27%) are far more prevalent, primarily because of their lower upfront costs. Geothermal plants use 88% less space than solar farms to produce the same energy, but have been restricted to geologically active regions.

In 2026, Finland was named the world's happiest country for the ninth consecutive year based on its wealth, social safety network, and high life expectancy, among other factors.

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.

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

Most of the observable universe's volume consists of voids and supervoids—enormous regions of space with little to no galaxies, stars, or light.

Iran's Revolutionary Guard Corps is independent of Iran's regular army and is one of the most powerful and influential military-political organizations in the Middle East.

The Nasdaq's 'Magnificent 7' companies are responsible for roughly 40% of the Nasdaq 100 index's gains, while the remaining 93 companies account for the other 60%.

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.

All rainbows are 'raincircles' caused by water droplets separating white sunlight into a spectrum of colors, but Earth's surface blocks the bottom half of the circle from our line of sight.

Bone marrow (soft tissue found inside certain bones) generates roughly 500 billion new blood cells each day

Explore a list of the 100 best novels of all time, compiled by some of the world's best living writers, including Salman Rushdie, Stephen King, and Jennifer Egan.

In 1963, a basement renovation in Turkey revealed a passageway to a hidden, multilevel underground city that once housed as many as 20,000 people

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.'

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

Three Ebola species are responsible for most large outbreaks of the disease, yet the only approved Ebola vaccine is known to work against just one of them.

Waves off the coast of Nazaré, Portugal, can reach over 100 feet and are caused by the area's deep underwater canyon geography

While El Niño moves warm Pacific Ocean waters east along the equator, La Niña moves them west, shifting where rainfall will become more common for months.

Electrical grids worldwide must double their power delivery capacity by 2050 to meet surging demand from AI and electric vehicles.

Between 10 million and 50 million people in the US develop rashes from poison ivy, poison sumac, and poison oak each year.

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

See how Budweiser's famous Clydesdales spend their days at Warm Springs Ranch, where roughly 70 to 80 of the beer brand's giant horses can be found at any given time.

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