There are more than 300 separate sign languages worldwide

How the National Science Foundation helped cement the use of American Sign Language

Before the 1960s, deaf students were taught to read lips and pronounce words without signing, which was not considered a true language. After noticing that students nonetheless signed when communicating, American linguist William Stokoe conducted NSF-funded research that showed that signing met the definition of oral languages, thus establishing ASL.

More than 90% of American deaf children are born to hearing parents

The National Institute on Deafness and Other Communication Disorders have collated top statistics about hearing loss in the US including differences by age, racial groups, and other factors.

Discover the deep history of Indigenous Hand Talk

This video explores Plains Indian Sign Language, part of a broader system known as Hand Talk that dates back centuries. It traces regional variations across North America—and how residential schools worked to suppress its use.

More than 300 distinct Native American languages existed at the time of European contact

Indigenous North America exhibited vast linguistic diversity, with over 300 languages spanning dozens of unrelated language families. This variety reflected centuries of distinct cultural development across the continent's many nations and regions.

Why English is so difficult to learn

As a language, English is a hodgepodge—a Germanic language heavily influenced by French and Latin. These combinatorial roots have left the language full of irregularities and inconsistencies, with complexities such as varying verb forms for...

Meet the 56 signers of the Declaration of Independence and see their original signatures

This online exhibit from the Daughters of the American Revolution presents a visual slideshow of all 56 signers of the Declaration of Independence, pairing portraits and biographies with photographs of their handwritten signatures.

The Super Bowl is televised in over 180 countries in nearly 25 languages

First aired in 1967 on two US networks, the Super Bowl became a global broadcast in 1982, drawing about 4.5 million viewers in England, and is now televised in more than 180 countries in roughly 25 languages.

Louisiana has parishes instead of counties

Louisiana is the only US state that uses parishes rather than counties as its primary local government unit. The distinction traces back to the state's French and Spanish Catholic colonial heritage.

Linguistics professors believe memes are a language

It's generally agreed upon that languages exhibit at least some of the following characteristics: compositionality, social transmission, arbitrariness of form and meaning, and accomplishment of linguistic functions like asking questions and expressing emotions, among other qualities. Memes fulfill these basic requirements, giving them linguistic legitimacy.

The 'Sign Post Forest' in Canada's Yukon collects roadsigns from across the globe

The unique roadside attraction is a common stop for those traveling along the Alaska Highway, allowing visitors to browse over 100,000 signs. The collection is believed to have been started in 1942 by a homesick American soldier.

Art Deco formally began in France in 1925

The design style—often associated with 1920s New York—is named after the International Exhibition of Modern Decorative and Industrial Arts in Paris, which featured many works in the style, which was already popular in France.

Eurovision voting largely follows cultural blocs

In 2025, France's AFP analyzed the voting data from every Eurovision Song Contest and found that how countries vote often reflects long-standing cultural associations, with Nordic countries, Baltic states, and former Soviet nations tending to vote in solidarity.

Meet the 56 signers of the Declaration of Independence—most of whom didn't put pen to paper until August 2, 1776—and see their original signatures.

Decoding sports-betting language

The world of sports gambling is filled with insider lingo: What's a "spread"? How about a "moneyline" or a "parlay"? This resource breaks down the jargon, helping you navigate the industry or, at least, giving you the keys to talk about it.

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.

The US framework of government has influenced the constitutions of many other countries

In 1787, the US Constitution introduced a system built on the separation of powers and individual liberties, including freedom of speech and religion. Though widely influential, its rigidity has made it less of a modern model as countries adopt more adaptable constitutional frameworks.

The preferred barbecue sauce depends on your location

America's regional barbecue styles include multiple highly specific sauces. From the tart, acidic vinegar-based sauces of North Carolina, to the thick, sweet-spicy Kansas City variation, American barbecue sauces are as varied as the country’s geography.

Mapping Claude's relative usage worldwide, led by Israel, Singapore, and the US

According to Anthropic's AI Usage Index, the US leads in total users, but Israel and Singapore have higher adoption rates among their working populations. Excluding nations with insufficient numbers of conversations for analysis, Tanzania and Angola rank last in the index.

Graffiti has its own visual language, including simple 'tags,' large block letters, and complex 'pieces'

Every graffiti artist looks to create their own visual identity, but they often rely on common folk styles, especially when they're still developing their craft. "Tags" are little more than an artist's pseudonym, while "Wildstyle" takes an abstract approach to the signature. More complicated styles, like "blockbuster," are like informal billboards strapped to the sides of buildings and subway cars.

The Greek island of Sfyria's dying whistling language

Sfyria is a whistled version of modern Greek native to a corner of Euboea, the second largest island of Greece, and is used for long-distance communication. Its name derives from the Greek word sfyrizo, meaning to whistle. The language's practitioners are fighting to preserve its use and legacy, as it is one of the world's most endangered. Learn more about their fight in this article.

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

Essential Catalan phrases you’ll need in Barcelona

When you go to a restaurant in Barcelona, you’ll probably get offered a menu in three languages: Spanish, English and Catalan. Catalan is one of the four official languages of Spain and the primary language schoolchildren learn in Barcelona. The language has become a source of pride and unity throughout the Catalonia region. So, here are some phrases you might hear and want to use in Barcelona.

The American Battle Monuments Commission maintains 26 overseas military cemeteries in 16 countries

The cemeteries honor more than 218,000 American war dead, with the majority of sites located in France and Belgium, where some of the heaviest fighting of both World Wars took place.

What is the Fediverse?

The "fediverse" is a league of like-minded apps looking to make our digital identities—including posts, followers, activity—move seamlessly between networks. It's a decentralized approach, making various social networks interoperable in contrast to Facebook and Twitter, where content is platform-specific. The fediverse provides stability and control to users. Learn more here.

Roughly 10% of the world has SSAD—SAD’s milder, nonclinical cousin

Subsyndromal affective disorder is diagnosed when someone exhibits two of the nine major criteria for depression (but not more than five) as a result of seasonal changes. While it is milder than primary SAD, SSAD is still significant and impacts millions.

San Francisco has the highest-paying average monthly salary in the US at $7,092

Other relatively high monthly average salaries in major cities worldwide include those in Switzerland, specifically Geneva at $7,984 and Zurich at $7,788. This chart shows other major cities across the world with high average monthly salaries.

Lunar New Year is celebrated around the globe

“Lunar New Year” is a catchall term that encompasses celebrations in several Asian countries. The date of the new year can vary by location depending on which calendar—lunar, lunisolar, or solar—is being used, but many of the traditions are shared across borders.

What do your dreams mean, according to science

Humans have been interpreting dreams as signs from deities, spirits, or the psyche for ages, and research shows that reflecting on and analyzing one's dreams can be beneficial. In alignment with dreams' elusive nature, they have no objective or clearly assigned meaning. However, variations of common dreams, such as a surprise exam in a forgotten class, are rife with shared primal fears.

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

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.

In preparation for this weekend's Eurovision finale, which is something like the World Cup of pop music, here's a young Céline Dion performing (for Switzerland?) at the 1988 competition.

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.

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

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.

Hear about the 250-year history of the United States Postal Service, complete with some of its strangest deliveries, important innovations, and the figures that made it an American institution.

The American Society of Civil Engineers' infrastructure report card gave the US a C in 2025, its highest grade since the project launched in 1998.

'Silent' fireworks have gained more interest in recent years as a quieter celebratory option.

About 2,000 US babies are born annually without some portion of their limbs, potentially leading to a lifetime of pricey prosthetics.

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

Louisiana's 'Cancer Alley' is infamous for having some of the highest industrial pollution, toxic air emissions, and cancer risks in the US.

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

Ebola is a filovirus, meaning it resembles a thread under a microscope, though it sometimes twists and can resemble a bowl of spaghetti.

During the French Revolution, a botanist's letter asking about "dear Rhus" (poison ivy) was intercepted, leading authorities to suspect he was conspiring with the Russians.

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.

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.

The Brothers Grimm were lawyers before they were storytellers, but became interested in fairy tales as they began investigating how rules and customs had been passed down through cultures.

Hotels in Cannes, the glamorous city on the French Riviera, hire hawks to ward off seagulls during the city's famous film festival.

A 2019 Facebook event called on attendees to "Storm Area 51, They Can't Stop All of Us," resulting in countless memes, the creation of a music festival, and eventually the arrests of those who did try to approach the area.

Existentialist writer Jean-Paul Sartre coined the famous phrase 'Hell is—other people' in his play 'No Exit'

Learn how to read a prospectus, the juicy document that any company must file with the SEC before going public.