Measuring the chance a Roman emperor would die violently

What do you mean ancient Rome had 'Five Good Emperors?'

Between the first and second centuries CE, Rome was ruled by five emperors who reversed the civilization's sprint toward civil war. By the end of the fifth emperor's reign, the Roman Empire had achieved a level of stability and power it would never hold again. This article details the reign of the Five Good Emperors—Nerva, Trajan, Hadrian, Antoninus Pius, and Marcus Aurelius—who were chosen based on their abilities instead of their bloodlines.

Roman terror was key to its centuries-long dominance

Historians like Polybius recorded Rome's violent tactics in detail, including the enslavement of entire populations and the mass killing of whole cities. Even as terror and violence proved effective in war, many Romans came to view the tactics with skepticism.

Child mortality rates since ancient Rome

One of the great achievements of modern humanity has been the sea change in child mortality rates—the chance that a newborn eventually lives past puberty. For thousands of years, children had a 50% chance of not entering adulthood. About 300 years...

‘Roman military pensions’ were among the first known pensions in history

Instituted by the first Roman emperor, Augustus, around 13 BCE, these early iterations of pensions made it so soldiers sometimes received about a decade's worth of their pay, plus some land to live on. Augustus instituted these pensions to secure loyalty and reduce the risk of coups and unrest. This video includes more fun tidbits about the history of retirement.

How ancient Roman gladiators got ready to rumble

Before they could lay the smackdown in the arena, gladiators were professionally trained, combining a physical regimen with an education in the rules of the ring. Contrary to popular belief, archaeological evidence suggests most gladiators weren't killed in the action, and women may have fought on rare occasions. This article breaks down a life of a Roman gladiator.

Ancient Romans were registered in lists of citizens to confirm their identity

Falsely claiming to be a Roman citizen was a capital offense, but taking up another identity was one way people could change their lot. Several accounts report how escaped enslaved people sought freedom by pretending to be citizens, and multiple "Neros" appeared after the real emperor died in 68 CE.

Machine learning produces photorealistic portraits of Roman emperors.

Toronto-based designer Daniel Voshart used photo editing and machine learning to catch a glimpse of Ancient Rome’s emperors. Employing contemporary descriptions, statues, and paintings, Voshart created lifelike portraits of 54 emperors including Augustus Caesar and Hadrian as well as the more infamous Nero and Caligula, though he stresses they’re only artistic interpretations.

Emperor Commodus fought as a gladiator while ruling Rome

Commodus, who reigned from 180–192 CE, scandalized Rome’s elite by appearing in the arena despite being the son of Marcus Aurelius. The ancient biography—though partly fictional—captures the shock his gladiatorial performances provoked.

Play 17th-century death roulette

Before modern science and medicine, death was much harder to escape. Using real mortality records from London's Dreadful Visitation–a collection of all the Bills of Mortality from 1665–this interactive game gives you an idea of what may have possibly killed you during the Great Plague. Grow your appreciation for life today as you stumble upon causes of death like “livergrown” and “drowned at St. Katharine’s by the Tower”.

The ancient Greeks and Romans viewed comets and meteors as divine omens

Both considered the appearance of a comet or its fragments as a precursor to significant events, such as the birth of a notable figure or the death of a ruler. One observed in 44 BCE was believed to be a sign of the deification of Julius Caesar after his assassination.

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

The Romanov family ruled Russia for more than 300 years

From 1613 to 1917, 18 Romanovs—including Peter and Catherine the Great—governed the vast Russian Empire. Their dynasty ended abruptly in 1917 when Nicholas II abdicated amid wartime shortages and revolutionary unrest, marking the end of imperial Russia.

Cleopatra was a rare female pharaoh who sided with Rome to preserve power

The figure is famous for her love affair with Roman leader Mark Antony and her suicide in 30 BCE to escape capture. Parse through the many versions of Cleopatra with more recent archaeological evidence, including a 2007 coin depicting the queen as less glamorous than historically believed.

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.

There were dozens of attempts to assassinate Hitler—most famously Operation Valkyrie in July 1944

Across his reign, Hitler survived at least 40 plotted and actual assassination attempts, ranging from lone actors in beer halls to organized military conspiracies. The most notable, Operation Valkyrie on July 20, 1944, led by Colonel Claus von Stauffenberg, planted a bomb at the Wolf’s Lair in an effort to kill Hitler and overthrow the Nazi regime. Though the explosion injured several, Hitler escaped with minor wounds, prompting a brutal purge of conspirators.

Being a Byzantine emperor

The Byzantium and Friends podcast, hosted by Anthony Kaldellis, surveys current research in the history of the Byzantine Empire and its neighbors. In each episode, Professor Kaldellis interviews a scholar about their recent work. The cumulative effect is to reveal a world much more complex, and much more interesting, than the Byzantium found in traditional surveys. The linked episode considers the perks and pitfalls of being a Byzantine emperor.

Grip strength predicts death better than blood pressure

In a study covering about 140,000 people across 17 countries, scientists found that for every 5 kilogram drop in adults' grip strength, it raised the risk of death by 16%. Grip strength, the research found, was a stronger predictor of cardiovascular death than systolic blood pressure.

Vesuvius has erupted nearly 40 times since Pompeii

With a 17,000-year history and dozens of eruptions since 79 CE, Vesuvius sits atop volatile geological forces that make it an unusually explosive volcano. This explainer breaks down why the volcano remains dangerous today.

Murder rates spiked in the US after COVID-19, and then declined in 2023

Criminologist and former investigator Jillian Peterson says whether a murder is solved in the US is nearly up to the flip of a coin, with the clearance rate for murder cases being about 50%. The US, which has more guns than citizens, has about roughly five gun homicides per 100,000 residents, resulting in the 28th-highest rate of deaths from gun violence compared to the rest of the world.

Two-thirds of soldier deaths during the war were due to disease

Roughly two-thirds of all Civil War deaths resulted from disease rather than battle. Poor sanitation, contaminated water, and limited medical knowledge made camps breeding grounds for dysentery, typhoid, and other deadly infections.

Who died during the French Revolution of 1789?

This article examines the human cost of the 1789 French Revolution, during which up to 17,000 people were guillotined and many more were killed by other means. A majority of the guillotine deaths were meted out during the Reign of Terror, a...

The ultrarare 'Er' blood type has been documented only about 40 times

In 2022, the tragic loss of a pregnancy led researchers to the discovery that the rare "Er" blood type could potentially cause a mismatch in blood types between mother and fetus during pregnancy, with devastating consequences. (Some users may encounter a paywall.)

The odds of getting seriously injured on a US roller coaster are one in 15.5 million rides taken

Understanding the mechanics of a ride can help explain why they are so safe. Lift hills, launches, and breaks are each crucial components of coasters and are designed to possess numerous safety features in case of any dysfunction.

Estimates say 2.5 billion total T. rexes lived on Earth

Roughly 68 million years ago, the Tyrannosaurus rex was king of the North American ecosystem. Researchers used the dinosaur's size, metabolic rate, age of sexual maturity, and other factors to determine 20,000 individuals likely were alive at any given time, more than 120,000 20-year generations. This piece breaks down how they arrived at those numbers.

The legend of the Chinese zodiac involves a race between animals

The legend of the Chinese zodiac says that to help people keep time, the emperor of the gods established a 12-year cycle, with each year symbolized by a different animal. To choose the animals, he held a cross-river race. Each of the winning animals used their unique skills to get across the river: The snake is sneaky, the rabbit is nimble, and the rat is cunning. These characteristics are believed to be mirrored by those born under the animals’ zodiac signs.

Investigating the death of a 5,300-year-old mummy

Authorities generally consider a case to have gone cold once they've run out of leads or the ability to collect and consider new evidence, usually within a few years of the instigating event. Now imagine being a detective charged with investigating a death that happened more than 5,000 years ago. This article details how Alexander Horn, a then-detective inspector, attempted to solve the mystery of Ötzi the Iceman's death.

Volcanic activity may have triggered the Black Death by spewing gases that led to crop failures in Europe, thus forcing the import of grain ships with plague-infested fleas.

11 people died from firework injuries in the US in 2024.

Abraham Lincoln was almost assassinated weeks before his inauguration as he traveled from Illinois to DC through Baltimore in 1861; it took two independent claims for Lincoln to be convinced the threat was real

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

Radioactive elements can introduce software errors because the ionizing radiation they produce can detach electrons from atoms, and computer code relies on the distribution of electrons.

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.

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

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.

Despite being favored by 87% of Americans, Congress does not have term limits.

See 33 images that became central to huge scandals, including a young Charles and Camilla, Michael Jackson's baby on a hotel balcony, and Hugh Grant's mugshot.

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.

Against his wishes, Albert Einstein's brain was removed before his cremation, and the pathologist responsible stored it for decades in mason jars within a beer cooler.

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

The concept of phantom limbs, the perception that amputated limbs are still present, dates back to a French military surgeon in the 16th century.

Studies suggest when you sleep is as important as how much you get, and syncing with your circadian rhythms may lead to less fatigue and improved long-term health outcomes

See a ranking of the best (and worst) Federal Reserve Chairs since 1914 out of the 16 men and women who have held the office since.

Neutron stars, the remains of some massive stars after they explode in a supernova, are the densest directly observable objects in the universe.

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.

Some coin denominations have ridges etched on their sides, partly to prevent counterfeiting, in a practice called 'reeding.'

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.

Double world record holder Hunter Ewen helped conquer his fear of balloons, called globophobia, by training to win Guinness World Record titles for balloon inflation.

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.

One disco producer saw 'Star Wars' four times on its opening weekend and was so inspired that he recorded the album 'Star Wars and Other Intergalactic Funk,' which produced a chart-topping single.

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.