History

Dyngo served three tours in Afghanistan before retiring to Washington, D.C.

America at War

The Story of Dyngo, a War Dog Brought Home From Combat

I brought a seasoned veteran of the conflict in Afghanistan into my home—and then things got wild

1921 Christmas greetings slide by Arthur Earland

The Nerdiest Christmas Cards Ever May Be These Microscope Slides Composed of Shells

The unusual holiday exchange, which lasted decades during the early 20th-century, hints at the drama between the two colleagues

Redwood forest in California, similar to some of the terrain Josiah Gregg and his team crossed at the height of the California Gold Rush.

The Ill-Fated Expedition of a 19th-Century Scientist to Explore the California Wilderness

Even facing exposure and starvation, Josiah Gregg insisted on stopping to take measurements and observations, much to his companions' distress

Beneath the Space Window at the National Cathedral in Washington, D.C., where a seven-gram sample of moon rock is incorporated into the design, a sold-out crowd gathered this week for the celebration of the 50th Anniversary of Apollo 8.

NASA Won’t Be Going ‘Back’ to the Moon—It Wants to Go Beyond It

At a 50th-anniversary event for Apollo 8, NASA’s Jim Bridenstine envisioned the moon’s potential for future space exploration

The card game Spot It! has become one of the most popular family games in the country, but the secret to how the game works has its roots in the logic puzzles of 19th century mathematicians.

Education During Coronavirus

The Mind-Bending Math Behind Spot It!, the Beloved Family Card Game

The simple matching game has some deceptively complex mathematics behind the scenes

“Everyone involved accomplished many, many firsts with that flight,” says Smithsonian curator Teasel Muir-Harmony. of NASA's near-perfect mission, (above: Apollo 8 command module).

How Apollo 8 ‘Saved 1968’

The unforgettable, 99.9 percent perfect, December moon mission marked the end of a tumultuous year

The Cruces de Molinos site in the Chilean Andes contains rock art depictions of llama caravans, possibly marking a ceremonial site for caravaners passing through the mountains.

Thousand-Year-Old Rock Art Likely Served as a Gathering Point for Llama Caravans Crossing the Andes

Trade caravans, whether supported by mules, camels or llamas, have helped archaeologists piece together the past in many corners of the world

An aerial shot of North Sentinel Island

Inside the Story of John Allen Chau’s Ill-Fated Trip to a Remote Island

Questions abound about the ethics of the missionary’s trip and what will happen next

A police officer directs traffic in London in the 1890s.

When the Street Light First Came to London, Disaster Ensued

First introduced in 1868, the device was meant to prevent accidents—but then it caused one

As biographer Antonia Fraser explains, Mary’s story is one of “murder, sex, pathos, religion and unsuitable lovers"

Based on a True Story

The True Story of Mary, Queen of Scots, and Elizabeth I

Josie Rourke’s film sees Saoirse Ronan and Margot Robbie transform from allies into rivals, but in actuality, the queens’ relationship was far more complex

Thomas Jennings, accused of murdering Clarence D. Hiller, Chicago, Illinois, 1910.

The First Criminal Trial That Used Fingerprints as Evidence

Thomas Jennings used a freshly painted railing to flee a murder scene but unwittingly left behind something that would change detective work forever

The train carrying President George H. W. Bush, following in the tradition of Lincoln, Garfield and Eisenhower, will travel along a published 70-mile route so that mourners can gather along the way to witness the journey.

The Somber History of the Presidential Funeral Train

This grand tradition has allowed Americans across the country to pay their respects to the chief executive

Illustration of a sloth in André Thevet's Les Singularitez de la France Antarctique (Paris: heirs of Maurice de la Porte 1558)

The Strange Nature of the First Printed Illustration of a Sloth

As described by a 16th-century French missionary, the South American 'little bear' with the face of 'a baby' was introduced to Europe

George H.W. Bush (1924-2018). Photograph by William Coupon.

Looking Back at George H.W. Bush’s Lifelong Career of Public Service

The former President, dead at 94 years old, was noteworthy for his “humanity and decency,” says a Smithsonian historian

The Best Books of 2018

In our efforts to increase and diffuse knowledge, we highly recommend these 70 titles released this year

Hand axes from the site of Saffaqah, Saudi Arabia.

Stone Tools at Arabian “Crossroads” Present Mysteries of Ancient Human Migration

Hominins made stone tools in central Arabia 190,000 years ago, and the hand axe technology raises questions about just who they were

If Light Can't Escape Black Holes, How Do We Get Photos of Them... and More Questions From Our Readers

You asked, we answered

About 65 percent of Americans will send Christmas letters or cards this holiday season.

The History of Our Love-Hate Relationship With the Christmas Letter

How the "Dear Friends" missive started and how it has survived the Facebook age

What the Popularity of 'Fortnite' Has in Common With the 20th Century Pinball Craze

Long before parents freaked over the ubiquitous video game, they flipped out over another newfangled fad

The breakthrough propeller, its blades shaped by hatchet and drawknife from two-ply spruce, was sheathed in linen and sealed with aluminum powder mixed into a heavy varnish.

Why Wilbur Wright Deserves the Bulk of the Credit for the First Flight

A new book advances a controversial theory about the singular contribution that went into the brothers’ pioneering achievement

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