There's a goddess in South Asia worshipped for her protection against cholera

We're in the middle of a decadeslong cholera pandemic

In 1961, the world's seventh recorded cholera pandemic started in South Asia, and it has continued through the decades. India and Bangladesh are at particular risk. This pandemic is driven partly by conflict, population displacement, extreme weather, and poor water infrastructure.

Cholera vaccines can protect people from disease for months—or even years

There are three recommended cholera vaccines on the market. The number of required shots and the period of protection they provide vary, but each of them can be life-saving.

Historically, cholera has repeatedly disrupted the Hajj for Muslims

Outbreaks of the disease throughout the 19th century and the beginning of the 20th, killed thousands of religious pilgrims as they sought to complete this obligatory pilgrimage.

The wonderfully named Vibrio diabolicus is a cousin of the cholera-causing bacterium

This bacterium, which belongs to the same genus as the cholera bacterium, was initially isolated from deep-sea hydrothermal fields. It was sampled from water that was scooped up during a French-American cruise in October 1991.

Oral rehydration solution was developed in the 1960s in response to cholera deaths

Drinking this life-saving mix, which consists of clean water, salts, and sugar, helps the human body rehydrate after extreme bouts of diarrhea, vomiting, or both. It's now used for a variety of diarrheal diseases.

A comprehensive guide to the gods

History is filled with the power and mystique of gods, from the epicly bearded Greek boss Zeus to Hoori, the Japanese god of hunting. Check out this database of over 4,000 of the world's deities, from Norse mythology to the gods of Polynesia, and click through for explainers and facts. Peruse specific pantheons (a single culture's collection of gods) or look for the god of a specific attribute, place, or emotion. Dive in here.

The role of textiles in South Asian art

Textiles play an essential role in the religious traditions of the Indian subcontinent, acting as portable shrines that can relay important allegories and depict spiritual iconography. This primer from Smarthistory breaks down how imagery is used on these textiles and helpfully provides high-quality images, allowing you to witness their beauty for yourself.

The prophetic Oracle of Delphi held real power in ancient Greece

It was said to have a direct line to Apollo, the Greek god of various domains, including music and prophecy. The oracle was believed to be the most important job in the city and could only be held by women. After years of training, oracles-to-be would be assessed to see if they could become the Pythia—the single oracle who would communicate Apollo's will.

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.

Even in recent history, adaptations to the environment drove human evolution

Through genetics, environmental pressures, and cultural influences, humans have evolved to tolerate lactose, develop varying skin pigmentation, and acquire genetic resistance to diseases like bubonic plague. The metabolic and digestive systems of Indigenous peoples have adapted to their diet, which is influenced by the availability of food and water.

‘Namaste’ was popularized in the English language after India gained independence

The word, which roughly translates to “I bow to you,” is a greeting often used in yoga. The word began appearing in American publications more frequently following the country’s liberation, and was standardized shortly thereafter.

Hippocratic doctors treated severe mental illness with the poisonous plant hellebore

Since symptoms like hallucinations were believed be due to an imbalance of black bile, yellow bile, blood, and phlegm, the treatment at the time was to bring those humors back into balance. That meant standard treatments could include bleeding a patient or using substances like hellebore to induce vomiting or diarrhea.

What is salvia divinorum?

After centuries of use by Mexican spiritual healers, Salvia divinorum is surging in popularity in the U.S. — and the government has taken notice.

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

Awareness of local burial and grieving traditions eventually helped healthcare workers fight the spread of the virus. As healthcare workers and burial teams altered their procedures during the 2014 West African Ebola outbreak, and as community leaders pressed people to adapt traditional ceremonies, the spread of Ebola began to slow.

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

A family's yearslong poisoning

Over 14 years, a southern Indian family slowly lost six members, several of whom were found foaming at their mouths. Upon the third death, a post-mortem examination was requested, revealing cyanide had been ingested, though it was ruled as self-inflicted. Several will edits and three deaths later, relatives turned a critical eye toward Joliyamma "Jolly" Joseph, who had married into the family and been present at each death.

Ritual Maya dental ornaments may have prevented tooth decay

Analysis of Maya dental sealants shows they used plant resins and gums—some derived from pine with antibacterial properties—suggesting gemstone tooth inlays may have helped reduce infection while serving ritual and symbolic purposes.

To reach the afterlife, Egyptians lived in accordance with ma'at, or harmony

The ancient Egyptians held many beliefs about eternal life, fueling entire industries tasked with building tombs for the dead. Their leader, the pharaoh, was believed to be divine, and the lives of ordinary people were punctuated with ritual and myth. Learn more about their religion here.

Marigolds are an iconic symbol of Day of the Dead

The native Mexican flower performs several functions in Day of the Dead celebrations. Its vibrance and unique scent help guide wandering souls home, and its cheerful color reminds celebrants that death can still be joyful.

Near-death experiences bear similarities to the tradition of religious visions

Near-death experiences are often associated with Christian concepts such as heaven or angels, but people of all faiths (or lack thereof) have reported these events. This in-depth piece by Professor Atif Khalil examines the intersections of religion and science and the common elements in Western, often Christian, experiences with those of Eastern religions such as Islam and Buddhism.

Grosse Île, the quarantine island of the Port of Quebec

As tens of thousands of Irish emigrated to North America to escape the Great Famine in the mid-19th century, many port cities set up quarantine areas amid an epidemic of cholera. In Quebec City on the St. Lawrence River, one island became a mass graveyard where over 3,000 Irish immigrants died over a decade as they waited in quarantine. Listen to the history here.

The long history of an ancient Andean beer made from corn

And often chewed before brewed. From dank chicherias in small towns to gourmet big-city restaurants catering to tourists, the traditional fermented-corn beverage chicha is still being drunk throughout the Andes. Read more here.

No one's sure why it's spelled 'sundae'

There are several different folktales explaining the origins of the popular ice cream dish and its curious name. One claims an enterprising pharmacy used chocolate syrup instead of soda, which was banned on Sundays. Another claims the dish's unique spelling was to avoid offending religious folks who might object to an unholy reference to the Sabbath.

Hear today's call to prayer and special 'duas' sung by the muezzin

The call to prayer is a distinctive sound marking the start and end of the fast each day, playing a key cultural role in the rhythms of the period. This archive collects "duas" (or supplications, or a prayerful petition) for each day in the year, with timely prayers and recitations sung by the muezzin, or cantor, in gorgeously intricate melodic intervals.

Why pickles became a thing

Pickles began in Mesopotamia around 2400 BCE as a way to preserve vegetables amid heat (and spoilage). They spread through Egypt, Greece, and Rome, where Julius Caesar reportedly fed pickles to his soldiers, and brining was treated as a culinary art. The technique is broadly useful, as salt and water can extend the shelf life and deepen flavor for almost anything.

Korea's "real-life mermaids"

Explore the incredible world of Haenyeo, Korea's female freedivers who dive to depths of up to 60 feet without oxygen tanks. These amazing women have been practicing this ancient tradition for centuries, and yet, their story remains largely unknown.

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

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

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 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.

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.

Poison ivy's rash-causing compound is found in the plant's roots, stem, and leaves—so coming into contact with any part of the plant can lead to rashes for the 85% of people who are allergic to it.

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.

Hookworm infection, though risky, may help fight certain autoimmune conditions by tamping down the immune system's inflammatory response.

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

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.

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.

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.

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

The boiling temperature of water decreases with increasing elevation because the molecules need less energy to overcome the lower atmospheric pressure associated with thinner air.

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

Some Pokémon have been named after real and fictional organisms, while some real-world species have been named after Pokémon, such as Chilicola charizard and Binburrum zapdos.

Dozens of S&P 500 stocks, including Coca-Cola and Walmart—known as the dividend aristocrats—have increased dividends every year for 25 years

Artificial coral reefs have been 3D printed from nontoxic, biodegradable terracotta clay, which coral polyps have used as a foundation for rebuilding marine ecosystems.

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.

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

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

See images of medical cases of firework injuries shared on this 'Instagram for doctors.' (Warning: Graphic content)

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.

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.