The Spanish consolidated power in California with 21 strategic missions

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

They were typically given to leading families or retired soldiers as means of settling the land with loyal people. The hundreds of ranchos have since shaped land-use policy in the area, determining plots of major cities and ranches today.

See the path Spanish conquistadors took to conquer the Aztecs

Spanish expeditions reached central Mexico as the Aztec Empire was expanding its influence. After securing bases in the Caribbean, they advanced west into Aztec territory, triggering a cascading conflict depicted in this interactive map and timeline.

The Indigenous people of the central Californian coast made many advancements

The Indigenous people of the central Californian coast made advancements in basketry, small stone tools, the use of shell beads as currency, and plank canoes for seafaring. In the years before European contact, their numbers reach 25,000 across 150 settlements.

A quick overview of Santa Barbara

The central California city with the year-round Mediterranean climate weaves a fascinating history of indigenous, Spanish, Mexican, and then US history. This three-minute overview touches on the city's layered story, distinct architecture, and many celebrities.

California is one of the world’s 35 biodiversity hotspots

The state comprises the hotspot known as the California Floristic Province, where roughly 3,000 species of vascular plants grow—roughly three-fifths of which are found nowhere else in the world (also known as endemic).

Visualizing California's wine production

While Europe has France, Italy, and Spain, the US has California. The bulk of US wine production takes place in the Golden State, accounting for roughly two-thirds of the United States’ nearly 800 million gallons produced each year. This chart compares California and United States wine production from 1995 through 2022. Production in both has been trending down for several years, partially due to extreme weather events.

A 1927 map shows where Paramount shot its many productions

The skeleton key of California identified in-state locations that would substitute for shooting films abroad. It includes some interesting choices, like establishing Wales along the Los Angeles coast.

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.

The Treaty of Guadalupe Hidalgo forced Mexico to surrender over half its territory

Signed in 1848, the Treaty of Guadalupe Hidalgo ended the war but came at a steep cost for Mexico—ceding 55% of its territory, including California and the Southwest, in exchange for $15 million and vague promises to protect Mexican residents.

The 19th-century Gold Rush and its sudden influx of European residents helped turn California's Napa Valley into wine country.

The Geysers is the largest geothermal power complex in the world

Despite the Mayacamas Mountains area north of San Francisco lacking geysers, the name given by a grizzly bear hunter stuck after the construction of The Geysers Resort Hotel to accommodate tourists. Natural steam vents in the region are funneled into more than 12 geothermal plants, each capable of powering about 40,000 homes.

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.

Spanish colonists celebrated alongside the Seloy tribe in Florida in 1565

Long before the 1621 meal between the Pilgrims and the Wampanoag, Pedro Menéndez de Avilés and 800 Spanish settlers founded the city of St. Augustine in Spanish la Florida. They celebrated the founding with a Mass of Thanksgiving with the Indigenous Seloy tribe.

The Aztec Empire began as a three-city military alliance

The Aztec Empire emerged in 1428 when Tenochtitlan, Texcoco, and Tlacopan formed the Triple Alliance, combining military power and tribute networks. This pact transformed the three city-states into a dominant regional empire that rapidly expanded across central Mexico.

France, Spain, and Britain formed a joint military alliance to force Mexico to repay its debts

In October 1861, the three powers signed the Convention of London and landed troops at Veracruz that December. Britain and Spain reached settlements with Mexico and withdrew. France refused and aimed to change the regime in power in Mexico.

The California Burrito is a french-fry filled spin on the Mexican staple

A California Burrito features carne asada and a generous heap of french fries wrapped in a flour tortilla. Its exact origin is unclear, but it's believed to have been invented in the San Diego area sometime in the 1980s.

Santa Barbara's streets are slightly off-kilter because surveyors used rawhide—which contracts and shrinks with temperature fluctations—to plan them.

San Francisco's Mission-style burritos, which are packed with rice and other fillings, were designed for hungry firefighters on the go.

Santa Barbara County features seven designated wine regions

Grapes are notoriously fickle about where they grow and cannot be cultivated just anywhere. That’s what makes the county’s seven American Viticultural Areas so unique and cool—from the Santa Ynez valley to the Los Olivos District.

The Aztec Empire ruled over 80,000 square miles of central Mexico for nearly a century—until a small band of Spanish conquistadors brought it down in 1521.

The Aztec capital of Tenochtitlan fell after a brutal 75-day siege.

See a map of the Maya civilization and its major historical sites

This interactive map showcases the full geographic extent of the Maya civilization, highlighting major archaeological sites across Mexico and Central America. Explore where Maya cities once stood—and where their ruins can still be visited today.

The Santa Ynez Band of Chumash Indians is the area's federally-recognized tribe

Thousands of years before Europeans arrived, indigenous populations settled and flourish in the region of Santa Barbara. Kenneth Kahn, the Santa Ynez band's chairman, shares insights on the history of the Chumash in the region.

Santa Barbara once had a thriving Chinatown and Japantown

In the late 1800s, the city had an influx of immigrants from China and Japan, prompting the growth of areas dominated by their respective cultures. Earthquakes and world wars, as well as a push for Spanish Colonial architecture, led to their eventual decline.

Spanish Colonial Revival favors red clay roofs, white stucco, decorative ironwork

The style recalls the motifs of structures in both Europe and in colonial Spain. Beyond clay roofs and stucco, the design also showcases arches and arcades, painted tiles, towers, and more.

A map of Barcelona from 150 BCE to 2010

Watch Barcelona evolve from Iberian settlements in 150 BCE to Spain’s second-largest city in the modern day by toggling this chronological series of 27 maps. Accompanied by a short contextual blurb, each map shows Barcelona’s steady urbanization over more than two millennia. For those captivated by the interactive, read this interview with one of the project’s key cartographers. He discusses how the mega-map was created and what it reveals about Barcelona’s history.

The Napa Valley was originally inhabited by the Indigenous Wappo people, who built homes and villages throughout the region.

Santa Barbara's Channel Islands revealed the oldest skeletal remains in North America

IN 1959, archaeologists found a human femur jutting out from a rock face on Santa Rosa Island. Using the then-new technology of radiocarbon dating, they measured the age of the remains at 13,000 years—the oldest in the continent.

The history of Solvang, California's little Danish village

Just north of Santa Barbara sits a curious California gem: Solvang, a small town constructed in the Danish Provincial style. This video tour of the village provides a fascinating history of how the town became a miniature Copenhagen and does so in a unique way: by trying to recreate vintage photographs of the town. It makes for an entertaining and educational tour.

Catalonia and the War of the Spanish Succession

The War of Spanish Succession (1702-1715) was an international and civil war that reshaped Europe’s political landscape and brought Catalonia under Spanish rule. Created by the Museum of the History of Catalonia in Barcelona, this virtual exhibit guides readers through the 13-year war with a specific eye for its effects on Catalonia. Galleries of artwork from the period on the right-hand side of the page help immerse visitors in the history.

Visualizing the spread of five major religions across the world

Every major religion has a story that started in a specific place before growing to reach millions. This quick video depicts an illustrated map over the last 5,000 years, showing how Hinduism, Buddhism, Judaism, Christianity, and Islam grew from their humble beginnings.

Before Chipotle, San Francisco was the epicenter of American burrito obsession

More than just something to eat, burritos were akin to a Bay Area religion in the early 1990s, inspiring performance art, comedy shows, music, philosophizing, and more.

Santa Barbara’s Botanic Garden was the first to showcase the state’s native plants

Founded in 1926, the garden’s founders sought to showcase the state’s local flora as a matter of conservation, rather than the water-hungry exotics regularly being imported. This story focuses on how the garden’s design took a more natural and less formal direction.

What was the Spanish inquisition?

In 1478, Spain's Catholic monarchy launched a campaign tackling heresy throughout the collection of kingdoms that would ultimately become modern-day Spain. This six-minute animated video overviews the Spanish Inquisition, a wave of religious...

Manifest destiny fueled US aggression against Mexico

The belief that the United States had a divine right to expand westward—known as manifest destiny—justified President Polk’s push for territorial conquest. It shaped public support for the Mexican-American War and framed the invasion as national destiny.

Over 400 tech companies call Santa Barbara home

The city boasts a strong talent pipeline from UCSB, established tech companies like Sonos and Procore and dozens of startups. Search for any company in Santa Barbara with this regularly-updated directory.

3 US maps illustrate transplants, donors, and organ waitlist additions—by state.

There's a legal loophole behind California Champagne

In the late 19th century, sparkling wine production took root in California before France began the fight to own the term “Champagne.” Many American winemakers already used it for easy recognition. The battle continued for over a century before reaching an agreement in 2005, stipulating that American sparkling wine couldn’t be labeled as Champagne unless the producer was already calling it such.

Explore Santa Barbara County's biodiversity

As part of one of the world's most biodiverse hotspots, Santa Barbara County is home to thousands of unique species, the majority of which are not found anywhere else in the world. This database compiles facts, photos, and more for each species, sortable by plants, animals, and more.

The US won every major battle of the Mexican-American War

Despite being outnumbered in key engagements, US forces defeated Mexican armies across every major front. Superior training, leadership, and logistics allowed the US to win decisively—capturing Mexico City without losing a single major battle.

President Polk deliberately provoked war with Mexico

After Mexico refused to sell California and New Mexico, President James K. Polk ordered US troops into disputed territory between the Nueces River and the Rio Grande—knowing it would likely spark a conflict. When fighting broke out, he used it to justify declaring war.

Side-by-side shots of once-dry California lakes now filled

In late 2022, much of California was in drought; by early 2023, after a series of downpours from atmospheric rivers, much of the state's reservoirs had been re-filled. See the dramatic difference in this series of photos.

The Inca Empire: a timeline

When did the Inca Empire solidify into an empire? When was it invaded by the Spanish? What remains of it today? Click through this timeline to learn more.

There are more than a dozen burrito types in the US

Different regions have different aspects, including Mission-style in San Francisco (and nationwide via Chipotle), the chile Colorado burrito, New Mexico’s breakfast burrito, and fusions like the Korean burrito.

15 facts about the Cali Cartel

The Cali Cartel was a drug cartel based in southern Colombia. Originally founded by the Rodríguez Orejuela brothers in the early 1970s, the cartel changed the structure of drug trafficking, and is often considered “the most powerful crime...

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.

The Monroe Doctrine helped lead to the American occupation of territory abroad

This podcast explores how the policy motivated a century of US military intervention throughout Latin America, the Caribbean, and the Pacific—covering the annexation of Hawaii, the Spanish-American War, and occupations of Cuba, Haiti, and Panama.

Some California cities outsource their public services entirely to the county

Southern California's "contract cities" incorporate as municipalities but pay Los Angeles County for police, fire, and other services rather than running their own departments—a cost-saving model common across the region.

Vintage 1980s photos of the streets of San Francisco

In the early 1980s, San Francisco was changing amid increased diversity and a nascent tech boom. This series of photos from 1981 and 1982 was found of the evolving city, depicting trolleys, doorsteps, storefronts, and more from a time very different from today. Explore the vintage shots here.

The United Nations was founded in San Francisco in 1945.