How Los Angeles got its palm trees

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.

Hollywood, explained

It all began in 1887 when Hollywood was registered as a small town before merging with Los Angeles in 1910. Filmmakers moved west to avoid Thomas Edison’s patent lawsuits, and the sunny California climate provided the perfect setting for year-round production. By the 1910s, studios like Paramount and Warner Bros. established themselves, and Hollywood's global dominance was cemented during its golden age from the 1930s to the 1950s.

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.

Hollywood's efficient response to the Spanish flu made it a filmmaking destination

In 1918, the Great Influenza epidemic killed more than 675,000 Americans. Los Angeles was one of the first cities to shut down movie theaters, most of which were independently owned and couldn’t afford the revenue loss. The results were twofold: the quick response meant that Hollywood could bounce back faster than other film hubs, and it also contributed to the rise of vertical integration as studios stepped in to purchase the flailing theaters.

The Hollywood sign originally said 'Hollywoodland'

The original sign, which was only intended to be up for 18 months and erected around 1903, advertised a new housing development in the Hollywood Hills. In 1949, the Hollywood Chamber of Commerce shortened it to "Hollywood."

Pineapple research helped scientists solve Los Angeles' smog mystery

In the 1950s, chemist Arie Haagen-Smit applied methods he'd used studying pineapple plant chemistry to smog-filled air—discovering that sunlight reacting with car exhaust produced photochemical smog from hydrocarbons and nitrogen oxides, not factory smoke.

Celebrities love Santa Barbara’s beauty, proximity to LA and the ocean

The city has been home to top actors, TV hosts, and more for decades, particularly in Montecito to the east of downtown Santa Barbara. Locals can see Oprah Winfrey walking on San Ysidro Road regularly (when she’s in town).

The world's largest Torrey pine is in Santa Barbara County

Torrey pines are extremely rare—believed to be endemic to just two pockets of California coast. In Carpinteria, to the southeast of Santa Barbara, stands the Woodholme Torrey pine, the world's tallest at 126 feet, first planted in 1883.

In 1974, Los Angeles’s Community Analysis Bureau built a smart city

Los Angeles utilized aerial imaging and cluster analysis to gather and interpret civic data, leveraging surveillance technologies developed by the Department of Defense during the height of the Cold War. Instead of being used for military purposes, data insights helped direct social services to high-poverty neighborhoods.

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.

Biologists believe over 5,000 coyotes inhabit LA as of 2025

Panic and fear of coyotes spread in the 1980s after the first recorded instance of a human killed by the animal in American history, but LA and Chicago residents today are learning to live alongside the animal. Research shows that coyotes can even benefit urban ecosystems by helping to control populations of geese and deer, and by improving songbird survival through preying on cats.

Every winner of the Cannes Palmes d’Or

It’s one of the most prestigious awards in all cinema. Winning not only guarantees significant buzz but also means you’re a part of film history, with past winners including “Pulp Fiction,” “Taxi Driver,” and “La Dolce Vita.”

The perplexing Battle of Los Angeles in 1942 generated swaths of UFO conspiracies

On Feb. 24-25, 1942, weeks after the Pearl Harbor attack, a US military radar warned of enemy aircraft. A citywide blackout went into effect, powerful searchlights were lit up, and US forces fired artillery at what they believed to be the enemy. However, no confirmed enemy planes were ever identified. Eyewitnesses reported seeing large objects flying overhead, and much of the public speculated about UFOs and extraterrestrial attacks.

Fungi have been used to restore island habitats in the central Pacific

After removing 1.5 million invasive coconut palm trees and eradicating the black rats that fed on them, as well as seabirds and crabs, conservationists working with the US Fish and Wildlife Service identified areas where fungi could be transplanted to provide nutrients to native trees. These trees serve as nesting sites for seabirds whose guano nourishes coral reefs.

Coachella got its name from a typo

The Coachella Valley, the region of California where the annual Coachella music festival takes place, got its name from an unlikely place: a typographical error. The intended name was "Conchilla," which means "little shell" in Spanish, a reference to fossils found in the area. Paperwork at the printer was misspelled, however, and "Coachella" ended up sticking, all the way until it was officially designated a city in 1946.

America had a national leprosarium—a leper colony—in Louisiana until 1999

Public health officials forcibly sent those diagnosed with leprosy to the Louisiana Leper Home in Carville, first founded in 1894. Listen to an interview about this site, its evolution, and how its residents advocated for themselves—including regaining the right to vote.

The symbol of the American lawn

Trimmed, pure green lawns are the norm in US yards and require regular mowing, fertilizing, and weed whacking to keep in order. They are cherished for their simple aesthetic and as a soft area for walking or playing near the house. Still, they are also so-called monoculture zones with only one plant species, lacking biodiverse resilience. This article traces the history of the lawn in America and the contemporary debates over its future.

Journalists are increasingly unionizing

The LA Times was a famously anti-union paper—until its owner sought to cut costs by consolidating positions across its portfolio. This paper isn’t alone. Over the past few years, as the news business struggled, many publications kicked their unionizing efforts up a notch.

In 2020, Palantir moved its headquarters from Silicon Valley to Denver, CO

Despite being a famous tech startup synonymous with Silicon Valley, Palantir executives and cofounders have criticized tech founders for not taking a bigger role in upholding Western institutions and supporting American defense and intelligence work. That cultural tension is frequently cited as a motivating factor for the company's 2020 move to Denver, CO. In early 2026, the company announced another move to a suburb of Miami, FL.

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 first sushi bar in the US opened in the 1960s in Los Angeles

Kawafuku opened in the city’s Little Tokyo neighborhood in 1923 and installed its sushi bar in the mid-1960s. The restaurant primarily sourced local seafood, including abalone, though it also imported fish from Japan, attracting many Japanese expatriates.

The Rockefeller Center Christmas tree was first erected in 1931 by construction workers

The tradition of erecting a tree in Rockefeller Center officially began two years later, when the company continued what the Depression-impacted workers had started. Today, its lighting and nearby ice skating draw millions annually, making it one of America’s most famous holiday traditions.

Watch city kids encounter the national parks

Part of Ken Burns’ "The National Parks: America’s Best Idea" film series, this video follows students from Las Vegas and Miami as they visit national parks. In Death Valley, the students get hands-on lessons in geology, while in Biscayne, they canoe through secluded groves and past coral reefs.

Millions of honeybees are hauled yearly across the US to help pollinate farms

As indigenous pollinator populations dwindle, farmers increasingly rely on commercial honeybees, which truckers often transport during cooler periods to prevent die-off from overheating. Pollinating all the almond trees in California requires 85% to 90% of all honeybees available to pollinate in 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.

The 1992 Olympics changed Barcelona

Barcelona wasn’t always a global tourist hotspot. Before hosting the 1992 Olympics, the city’s coastline was blocked by factories, green spaces were scarce, and tourism was minimal. But after securing the Olympic games, everything changed.

The name 'Silicon Valley' arose from the founding of Shockley Semiconductor Laboratory in Fairchild Semiconductor in 1956-57, founded near Stanford University in Palo Alto

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

Poison ivy was sent to Europe in the 1600s as an exotic, ornamental oddity, where it was purposefully grown in the English royal gardens at Kew, the Faculty of Medicine in Paris, and a few other locations.

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

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.

Netflix profits when you're not watching, and its movies are designed that way—read a detail-rich critical essay exposing lesser-known Netflix takes

See the most iconic photos from four decades of LIFE magazine

Power lines are dotted with large, brightly colored balls to improve the visibility of these thin wires to helicopters and small planes and help prevent potential crashes.

In 1939, baseball star Lou Gehrig delivered his inspirational 'Luckiest Man' speech after retiring due to the health condition that now bears his name.

Apollo astronauts left items in the moon's 'toss zone,' including golf balls, family photos, and bags of human waste, to make room for lunar rocks.

The American cockroach is actually from Africa, an apparent hitchhiker aboard ships carrying enslaved people, with evidence suggesting the bug may have arrived in the New World as early as the 1600s.

Frank Lloyd Wright's houses are historically hard to sell because they're old, subject to local landmark commissions, and often unfashionable

See how each of the more than two million known species relates to each other—and to common ancestors—in this zoomable tree of life.

Dorothy's famous entrance into Oz in 'The Wizard of Oz' relied on analog tricks, including a body double and sepia-toned paint, as much as it did on technology

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

Sony set the standard for cylinder-shaped batteries when it repurposed manufacturing equipment used to make rolls of magnetic recording tape.

Scientists can determine Earth's past climate conditions by analyzing air trapped in microscopic bubbles within ice cores—columns of compressed snow layers that build up over hundreds of thousands of years.

About 2,000 US babies are born annually without some portion of their limbs, potentially leading to a lifetime of pricey prosthetics.

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

Brian Wilson wrote the Beach Boys' 'Don't Worry Baby' for the Ronettes, but the legendary girl group rejected it.

Jimmy Carter signed a 1978 bill that legalized home brewing, a move credited with kick-starting the craft beer industry.

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.

While the first exchange-traded fund (a 'basket' of different assets that can be bought and sold on a stock exchange) in the US only launched in 1993, the global ETF market has grown to more than $10T in the short time since.

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