Ranchos were large land grants in California to Spanish, Mexican leading families

The Spanish consolidated power in California with 21 strategic missions

This map shows the order of establishment of the Franciscan-led missions whose saintly names still grace contemporary maps, from Santa Rosa in the north to San Diego in the south.

The Compromise of 1850 tried to settle disputes over land gained from Mexico

Territory acquired in the Mexican-American War reignited fierce debates over slavery’s expansion. The Compromise of 1850 aimed to ease tensions by admitting California as a free state and letting other territories decide the issue—but the compromise ultimately failed and helped pave the way to the Civil War.

Cinco de Mayo holiday celebrations originated with California's Mexican Americans during the Civil War

California Latinos first celebrated Cinco de Mayo in 1862 through patriotic assemblies called Juntas Patrióticas. Ardent Union supporters, these individuals saw the Puebla victory as a win for democracy against both French imperialism and the Confederate cause.

LA's oldest Mexican restaurant pioneered the burrito in America

El Cholo Spanish Cafe opened in 1923. It was among the first to serve several now-common Mexican dishes, including burritos in the 1930s, guacamole in 1955, and nachos in 1959.

The bison with mystery origins on California's Santa Catalina Island

Bison roam the 75 square-mile channel island of Santa Catalina about 25 miles south of Los Angeles in the Pacific. It's not clear exactly how they got there, but one theory says 14 of them were dropped off as part of a Hollywood film production. Generally beloved by the locals and vacationers, their numbers ballooned to nearly 600 but dwindled amid resource scarcity. What now? See the state of conservation efforts here.

Napa Valley was originally inhabited by the Indigenous Wappo people

Before the wineries, Napa was home to several Indigenous tribes, collectively called the Onasatis or Wappo, who lived and hunted on the land for generations before Spanish missionaries and settlers arrived. Some of their practices, like controlled burns of the dry brush, helped shape the fertility of the land for future agriculture.

The Mexican-American War trained future Civil War generals

Many key military leaders of the Civil War—including Ulysses S. Grant, Robert E. Lee, and Thomas “Stonewall” Jackson—first saw combat in the Mexican-American War, gaining battlefield experience that shaped their later commands.

Leonard Knight built a folk art landmark in the California badlands

Slab City is an unofficial off-the-grid community on the site of a decommissioned Marine Corps base in the Southern California desert. Knight began constructing his enormous and colorful "Salvation Mountain" in 1984. In 2000, it was designated "a folk art site worthy of preservation and protection."

Santa Barbara’s streets are slightly off-kilter because surveyors used shrinkable rawhide

The first survey of Santa Barbara was conducted by sea captain Salisbury Haley in 1851, who notoriously used a less-than-ideal material for surveying. The rawhide links caused significant issues with the city’s grid, as can be seen in this photo essay.

How LA brought water to its booming population

By the turn of the 20th century, Los Angeles had grown from a dusty, crime-ridden pueblo into a thriving metropolis. The only problem was that it was growing too fast. Here's the story of how the booming town created a massive water infrastructure to redirect area rivers to its residents.

The Dawes Act of 1887 broke up communally held tribal lands

Sometimes called the General Allotment Act, the Dawes Act divided reservation land into individual plots assigned to Native Americans, while "surplus" land was sold to white settlers. The policy led to Native tribes losing roughly 90 million acres, about two-thirds of their remaining land.

Sculptor and painter Charles M. Russell focused on the Old West

The Montana artist, known for his realistic portrayals of cowboys and Native American life, began to gain national attention after traveling to New York and establishing connections in the art world. Still, he spent most of his time in Great Falls, Montana, where he completed approximately 4,000 works.

The Roosevelt Corollary transformed the Monroe Doctrine from a defensive warning into a rationale for US military intervention

In 1904, President Theodore Roosevelt declared that the US had the right to exercise international police power in Latin America. Over the following two decades, the US intervened militarily in the region about a dozen times—often enough that Marines became known locally as "State Department troops."

What we know about aurochs, the ancestors of modern cattle

The relationship between humans and cattle is invaluable and longstanding. Evidence suggests cattle's wild, larger, and now-extinct ancestors, the aurochs, were also linked to early humans. Similarly valuable for their milk and labor power, yet significantly more threatening due to their size, aggression, and speed, auroch domestication was slow and complex. Discover new information about the fascinating ancestors of modern cows and the potential of re-introducing the species with selective breeding.

One office park had an outsized role in the birth of Silicon Valley

Developed in 1951, Stanford Research Park was more than just a pioneering suburban office park. It would go on to catalyze Silicon Valley's tech ecosystem as a whole.

Feudal landholding organized medieval Europe’s economy without relying on slavery

From the 10th to 13th centuries, Europe’s agricultural system relied on localized hierarchies. Lords granted land to knights for defense, who in turn mainly oversaw free peasants paying rents in labor, goods, or money rather than living under slavery.

The word 'dude' was originally used as an insult

Although the actual origin of the word is unknown, stymologists found the first recorded use in the United States was in the 1880s and referred to a young man, usually from the East Coast, who was overly concerned with his appearance. "Dude ranches" were an informal name for the ranches out West that catered to these types of men.

Mark Zuckerberg owns a cattle ranch in Hawaii

Zuckerberg owns a cattle ranch on Kauai, where he says his goal is to raise the best beef in the world. Zuckerberg has said that he raises Wagyu and Angus and feeds them macadamia meal and beer, both of which are produced on the cattle ranch. In January 2024, Zuckerberg said his daughter thought his full-time job was cattle ranching.

A New Mexican town named itself after the quiz show 'Truth or Consequences'

If you've ever driven through southern New Mexico, you might've been struck by one particular town name: Truth or Consequences. Originally called Hot Springs, the town was renamed after the popular game show in 1950, which offered to broadcast from the first town to change its name to match the show's. Although the town originally planned on changing it back, the name stuck.

Why Kansas is giving away cheap land

In Lincoln, Kansas, a housing renaissance is underway, driven by affordable real estate prices and a lower cost of living, in stark contrast to high-priced urban centers. Bradley Roberts, who previously lived in San Francisco, moved to Lincoln and...

‘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.

The Richter scale was only intended to quantify Southern California earthquakes

The scale, designed to rate the energy of the largest seismic waves released by an earthquake, was calibrated to the region’s crust and mantle properties. Since the 1970s, seismologists have instead used the moment magnitude scale, which considers all waves of released energy.

The Rockefellers' family office expanded to become a multifamily office

The Rockefellers created the first known single-family office in the late 1800s but the firm has evolved since to serve many wealthy American families.

Real estate is grouped into broad categories: residential, commercial and industrial

Other categories of real estate include raw land and “special use” real estate, which includes cemeteries. Technically speaking, real estate is considered an alternative investment.

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.

HH Richardson developed the Romanesque architectural style

The Richardsonian Romanesque style, which the architect developed during the 19th century, blended the Roman and Renaissance arches found in France with the pointed arches of Victorian Gothic. Below is a fountain designed by Richardson honoring Detroit's 16th governor.

70 years ago today, city officials in Santa Cruz, California, banned rock 'n' roll to protect its youth from corruption after witnessing a 'provocative' concert the night before.

See a 3D reconstruction of Tenochtitlan, the Aztec capital that was home to an estimated population of 200,000 to 400,000.

The 19th-century painters of the Hudson River School were among the first American romantics, with portraits that displayed the natural beauty of the young country.

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

The use of fungi to detoxify land and water—a process known as mycoremediation—has been used to clean up natural resources affected by the 2025 California wildfires.

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

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.

Corals are themselves not coral reefs—the term refers to the tiny marine invertebrates that build the rigid reef.

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.

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.

In 2025, four executives from large tech companies were given positions in the US Army Reserves—including Palantir Chief Technology Officer Shyam Sankar, which reinforced Palantir's ties with the US military and its role as a leading defense partner.

Explore an interactive map of battles from the American Revolution, along with detailed summaries of each engagement

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.

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.

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

Long before Major League Baseball began allowing instant replay for balls and strikes, an umpire reluctantly used the technology to determine whether a hit was a home run, a move that inadvertently ushered in a new era for the sport.

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

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.

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

Legendary architect Frank Lloyd Wright designed the SC Johnson headquarters in Wisconsin, aiming to make a cathedral-like workplace

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

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

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

American short story writer Flannery O'Connor raised 40 peacocks, which became potent symbols for her fiction's elegant violence