The longest official chess game lasted 269 moves and over 20 hours

The first chess game in space ended in a draw in 1970

Soviet cosmonauts Andriyan Nikolayev and Vitaly Sevastyanov played a game of chess against mission control while orbiting Earth aboard Soyuz 9 in 1970. The match ended in a draw—the first recorded game in space.

Chess can be played at lightning-fast or classical speeds

Time controls shape how the game is played—from bullet matches under three minutes, to blitz games under 10, to classical contests lasting over an hour. Each format demands different skills, from rapid intuition to deep calculation.

Bobby Fischer’s 1972 victory ended Soviet dominance of chess

In Reykjavik, American Bobby Fischer defeated Soviet champion Boris Spassky to claim the world title. The Cold War showdown drew global attention, breaking the USSR’s 24-year grip on the championship.

There are more chess game variations than observable atoms in the universe

Mathematician Claude Shannon estimated there are 10 to the 120th power variations of chess games possible. Known as the "Shannon number," this is more than the estimated number of atoms in the cosmos.

An 1844 chess match via telegraph anticipated the game's online popularity

The late November match pitted two local rival chess clubs from Baltimore and Washington, DC, against each other. The moves were transmitted over the Baltimore-Washington telegraph line, which had just been installed the previous May.

IBM’s supercomputer Deep Blue beat Garry Kasparov in 1997

After defeating IBM’s Deep Blue in 1996, world champion Garry Kasparov lost their 1997 rematch 3½–2½. The match was a milestone in artificial intelligence, marking the first time a computer beat a reigning world champion.

There are about 1,300 active grandmasters worldwide today

The title of grandmaster, established by FIDE in 1950, is the highest honor in chess. As of 2025, roughly 2,000 players have achieved the permanent title—an elite group representing less than one percent of the world’s competitive chess players. Around 1,300 are active today.

José Raúl Capablanca lost only 34 games in his entire career

World champion from 1921 to 1927, Capablanca was famed for his near-invincible style and masterful endgames. His extraordinary record of just 34 lifetime losses across thousands of games earned him the nickname “The Human Chess Machine.”

The Hans Niemann scandal rocked chess in 2023

In 2022, GM Hans Niemann was accused by Magnus Carlsen of cheating—a controversy that led to an internal Chess.com report alleging Niemann “likely cheated” more than 100 times in online games.

The longest word in English is 189,819 letters long

The wildly-winding word (so long that we can't fit it here) is the proper name for titin, a protein that keeps muscles elastic.

Watch Kipchoge break 2 hours in the marathon

The feat was once considered impossible, but one of the world's greatest marathoners got to work (with the help of a team of scientists and some of the world's most elite distance runners) to break that boundary in Vienna in 2019. The final stretch of the run is an emotional moment for Kipchoge, who doesn't even appear to be winded.

Lego stop motion reenacts the longest battle in World War I

One of the longest and bloodiest battles of World War I, the Battler of Verdun was a deadly conflict between French and German forces for 10 months in 1916. Some 300,000 lives were lost, but ultimately the French triumphed. This video provides a stop-motion reenactment of the battle in Lego bricks.

Play the Royal Game of Ur, one of the world's oldest known board games.

What was the longest year in history?

In 46 BCE, Julius Caesar declared the year would last 445 days. This four-minute podcast and accompanying article explain why. Caesar wanted to make the following year start after the winter solstice, an achievement attainable due to his tinkering with the Roman calendar. But to start the year right, Caesar had to stretch the transitional year, leading to the creation of Caesar's Year of Confusion, the longest year in history.

An electric pipe organ in Germany is playing a song for 639 years

Created by composer John Cage, the Halberstadt organ first began playing the piece in September 2001, and has since made only nine chord changes. The device within a medieval church utilizes compressed air to play continuous tones. The next chord change is scheduled for August 2026.

Angler catches nine-foot-long catfish

An Italian fishermen struggled for 43 minutes to reel in an over nine-foot catfish in the river Po, marking one of the largest such catches in history.

Investment banking jobs are famous for their long hours

Although some banks report attempts to cap hours for junior employees at 80 hours per week, these employees often continue working many more hours than that. Goldman Sachs analysts, for instance, went viral back in 2021 when they put together a PowerPoint deck complaining of 100-hour work weeks and mental health struggles.

Abramović and Ulay ended their partnership on the Great Wall of China

After over a decade of romance and collaboration, the pair formally separated in a 90-day performance that involved walking over 12 miles a day in solitude.

Why Serbia produces great basketball players

The NBA phenom Nikola Jokić isn't an anomaly. Serbia and other Balkan countries have produced generations of talented basketball players. This history of the region's approach to basketball explains why. It details a community-minded approach to the sport called "positionless basketball” that emphasizes dynamic multi-talented players rather than specialized superstars.

The greatest NHL rivalries

In its over 100 years as a league, the NHL has developed several heated rivalries, from the classic Canadian grudge matches between Toronto and Montreal to the Keystone State nemeses in Philadelphia and Pittsburgh. This list ranks the best and most bitter matchups, often tracing their animosity back decades.

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

Tennis match interrupted by 'Cotton Eye Joe'

Tennis players require extreme focus as they volley on the court, and officials typically enforce significant noise standards during play. So it was quite a shock when the 1995 hit "Cotton Eye Joe"—as recorded by Swedish Eurodance band...

In 2021, someone paid $2M for an unopened 'Super Mario Bros.'

The collectibles site Rally announced in 2021 that an unopened "Super Mario Bros." cartridge sold for $2M. That's the highest price ever paid for a video game.

Exploring the Hippodrome of Constantinople

The Hippodrome had room for about 80,000 spectators (more than the Colosseum, but less than Rome’s Circus Maximus). It was simultaneously Constantinople’s premier entertainment venue and its greatest political theater: the emperor routinely watched the games, and sometimes communicated with the crowd through a herald. The worst riot in Byzantine history, the Nika Revolt, began when the factions of the Hippodrome united in opposition to Justinian.

The 2024 women's national championship between Iowa and South Carolina drew nearly 19 million viewers

Fueled by Caitlin Clark's star power in her final college game, the South Carolina-Iowa championship peaked at 24 million viewers, more than the men's final that year, making it the most-watched basketball game of any kind in five years.

37 states today limit how long governors can serve

Most states cap governors to two consecutive four-year terms, though rules vary—Virginia is unique in allowing only one term at a time. These limits reflect a long tradition of restricting executive power at the state level.

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

The 1987 Nintendo video game 'Stadium Events' isn't known for being particularly fun, but its scarcity has made it a highly sought-after item that has sold for up to $35K at auction.

Search a massive database of over 4 decades of clues from the TV quiz show 'Jeopardy!'

The Russia-Ukraine conflict is the largest ground war in Europe since World War II in casualties, forces mobilized, and displacement of civilians.

In 1984, Operation Smash Hit intentionally crashed a 239-ton train into a nuclear waste canister at 100 miles per hour to prove the canister's safety, which remained completely intact and lost just 0.29 of its 100 pounds of pressure.

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.

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.

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

A pickleball's loud 'pop' sound can reach 120 decibels, which is equivalent to a hammer hitting a nail

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

Apeirophobia is an overwhelming fear of living forever, perhaps stemming from the brain's inability to conceptualize an infinite life.

Domino's Pizza's 30-minute delivery guarantee was responsible for the chain's 1980s surge, but it was discontinued after the company was found liable for delivery driver accidents.

Explore chaos in this simulation of two double pendulums, where small differences in the release angles produce wildly different outcomes.

This site reaches millions of visitors who are tired of AI chatbots and seeking human connection. Pretend to be an AI chatbot and ask questions, provide answers, and draw for people in real time.

US intelligence allegedly pursued more than 600 schemes to assassinate Cuban revolutionary Fidel Castro.

Indefinite cloning of some endangered species may not sustain their longevity because cloning success rates decrease as genetic mutations accumulate.

Stanford built a Google Maps for the Roman Empire, revealing how much it cost to travel in the ancient world

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

Gerrymandering works through two techniques: cracking opposing voters across districts to dilute their power, and packing them into a few to waste their votes in lopsided majorities.

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.

Urushiol, the oily toxin in poison ivy, can remain allergenic on clothing for years.

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.

The most expensive ad of all time was for Chanel No. 5 perfume and cost roughly $33M to produce in 2004—about $57M in today's dollars.

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