Eliza Scidmore advocated for planting cherry trees in Washington, DC, in the early 1900s

There are over 20,000 trees on the National Mall

Nearly 4,000 of the Mall's trees are cherry trees, all maintained by a small National Park Service arborist team that provides year-round, science-based care to address soil compaction, root damage, and heavy visitor traffic.

More than 5,000 marchers joined the 1913 Woman Suffrage Parade on the National Mall

On March 3, 1913—the day before Woodrow Wilson's inauguration—suffragists marched through Washington, DC. The parade drew large crowds, exposed violent opposition to women's suffrage, and helped galvanize support for the 19th Amendment.

Many legends about George Washington, including his supposed wooden teeth and the story of cutting down the cherry tree, lack evidence.

Microforests in urban environments may help combat climate change

Areas of densely packed native trees and drought-tolerant plants within cities can pull carbon dioxide from the air, cool surrounding neighborhoods, and support local wildlife. The idea behind microforests traces back over 50 years to Japanese ecologist Dr. Akira Miyawaki, who promoted planting whole ecosystems to restore degraded land.

The girl who lived in a tree for years

Julia Butterfly Hill lived in a redwood tree outside Stafford, California, for two years to prevent a lumber company from cutting it down, subsisting on rainwater and other provisions hoisted up by other volunteers.

Why Emily Dickinson was once better known as a gardener than a poet

Dickinson published very few of her poems during her lifetime, but many in the town of Amherst, Massachusetts, knew that she tended to her family's massive garden. In this deep dive, Tom Christopher explores how Dickinson's interest in gardening and botany, including the assembly of a massive book of dried plants, influenced her work.

Washington, DC, was designed by French-born architect Pierre L'Enfant

Pierre Charles L'Enfant was an engineer who fought in the American Revolution. George Washington chose him to design the capital for his military service, artistic training, and vision of a monumental national city.

Poison ivy was sent to Europe in the 1600s as an exotic, ornamental oddity

The plants were grown in the English royal gardens at Kew, the Faculty of Medicine in Paris, and a few other locations.

'Johnny Appleseed' was the itinerant horticulturalist John Chapman

Born in 1774 in Massachusetts, Chapman planted apple orchards for pioneers across Pennsylvania, Ohio, and Indiana, to be sold to locals to produce hard cider. He became famous through a 'Harper's Weekly' profile in the late 1800s, cultivating the modern legend.

The first women to run the Colorado River discovered four plant species

Over 45 days and 660 miles, Elzada Clover and Lois Jotter identified more than 50 species in what was the first botanical survey of the region. Expected to help navigate boats and cook for the crew during the day, their work was confined to before dawn and after dusk.

Elizabeth Schuyler Hamilton founded New York City's first private orphanage

Schuyler Hamilton, Alexander's wife for 24 years, continued telling his story after his death. She devoted decades to her own work—cofounding New York's first private orphanage, leading charitable fundraising, and becoming a prominent advocate for education and social welfare in the early republic.

Queen Victoria and Prince Albert popularized the Christmas tree in 1840s Britain

An 1848 engraving of Queen Victoria and Prince Albert around a decorated Christmas tree sparked a trend across Britain and the US. Their German-inspired custom quickly became a fashionable centerpiece of holiday celebrations.

A Nantucket woman helped build Macy’s

Margaret Getchell, an early Macy’s superintendent, was among the first female executives in the American retail industry. Getchell (who was distantly related to Macy’s founder RH Macy, although it’s unclear if the pair knew that when she was hired) helped shape Macy's as an early employee.

The real stories behind America's national parks

The history and impact of national parks is complex. The authors of "Olmsted and Yosemite: Civil War, Abolition, and The National Park Idea" curated this list of nonfiction books examining American national parks from a variety of perspectives.

American farmers—including George Washington—experimented with coffee farming

Two coffee plants—an arabica strand and a Kentucky Coffee Tree—continue to grow at Mount Vernon, Washington's iconic Virginia home. The Marquis de Lafayette requested the agrarian commander send him some beans in France.

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.

'Do one thing every day that scares you.'

-Mary Schmich (1953-present), a columnist for the Chicago Tribune

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.

Jacqueline Kennedy transformed the White House into a museum of American history

Between 1961 and 1963, first lady Jacqueline Kennedy oversaw a dramatic restoration of the White House, furnishing rooms with authentic antiques, founding the White House Historical Association, and securing congressional protection for the White House's historic interiors.

Washington, DC's Restaurant Nora was the first certified organic restaurant in the US

The owner, Nora Pouillon, opened the restaurant in 1979, branding its menu as "additive-free food" to avoid the negative associations people had with "health food." In 1999, it was certified as an organic restaurant, a standard achieved by using at least 95% organic ingredients.

The environmental crises of the late 1960s led to the founding of the EPA

Disasters such as the Cuyahoga River fire and the Santa Barbara oil spill prompted Congress and President Nixon to establish the Environmental Protection Agency in December 1970, with the goal of unifying federal efforts to control pollution.

Joan Didion interviewed The Grateful Dead in 1967, before they became music icons.

Journal entries by a 10-year-old girl living through the Civil War

So much of war history is written by politicians, officers, and soldiers. Less often heard from are civilians who witnessed the effects and bigger events of a war. Carrie Mabry Berry was a 10-year-old girl who lived in Atlanta during the Civil War who kept a diary. In it she recorded events like General Sherman's shelling of Atlanta and more. This article provides a peek in Carrie's diary.

A researcher recently discovered an interview from 1967 between groundbreaking journalist Joan Didion and the Grateful Dead, years before the band became an institution.

The original article revealing Machu Picchu to the world

After first coming upon the ruins of Machu Picchu in 1911, Hiram Bingham’s subsequent expeditions were funded by Yale University, the Peruvian government, and $10,000 from a then-young National Geographic Society—in fact, it was the first archaeological grant that NatGeo ever issued. The magazine devoted its entire April 1913 issue, all 192 pages, to Bingham and his findings. You can read that issue in its entirety here.

'If the time is not ripe, we have to ripen the time.'

- Activist Dorothy Height (1912-2010)

Madison Square Garden and Madison Avenue are indirectly named after James Madison

Madison Square Park was named for James Madison in the 1800s. Madison Avenue later took its name from the park, and Madison Square Garden was named after Madison Square, indirectly linking both landmarks to Madison.

The story of Opal Lee, 'grandmother' of Juneteenth

Opal Lee, an activist from Texas, is considered one of the major reasons Juneteenth is now an official federal US holiday. In 2016, Lee walked from Fort Worth, Texas, all the way to Washington, DC, to garner support for the cause of making the day an official national holiday. Read about her experience and victory in this brief overview of her role in the creation of the holiday.

'Grand Canyon of the Yellowstone,' a work by American painter Thomas Moran, inspired Congress to establish Yellowstone National Park.

American dance legend Martha Graham, sometimes called 'the Picasso of dance,' refused to perform at the 1936 Olympics in Berlin and conceived the piece 'Chronicle' in response to the experience.

Mid-century modern graphic designers, known for their bright colors and bold lines in advertising, also found success with children's books.

Walt Disney's early film 'Alice's Wonderland' was a groundbreaking innovation in the silent film era

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.

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

Before writing 'Walden,' transcendentalist Henry David Thoreau nearly burned down his hometown with a campfire that grew out of control.

Up to a million Girl Scouts sell about 200 million cookie boxes every spring, generating $800 million, largely because refusing a child is frowned upon

The story of Dollree Mapp, whose legal challenge over her 1957 conviction for possessing "obscene material" led to a major strengthening of the Fourth Amendment

English mathematician Ada Lovelace wrote the first computer algorithm a century before computers existed and hypothesized that computing devices would one day be able to compose music—foreseeing the generative AI systems of today.

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.

Sunflowers have long been a symbol of nuclear disarmament because they can extract large amounts of radioactive cesium from soil.

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

One of the most famous portraits ever taken is 'Afghan Girl' (1984) by Steve McCurry, yet the subject Sharbat Gula went much of her life without being identified or benefitting from the image's success.

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

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

Sears sold DIY house kits starting at $600 in its famous catalog from 1908 through the 1940s, resulting in roughly 10,000 'Sears and Roebuck houses' being built.

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

Explore an interactive map built from more than 100,000 survey responses on where people find joy in their lives

The American Society of Civil Engineers' infrastructure report card gave the US a C in 2025, its highest grade since the project launched in 1998.

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

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