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CIA map of food sufficiency in Japan from 1945.

See the Historic Maps Declassified by the CIA

A new gallery provides a rare look inside the 75-year history of the agency’s mapping unit.
Redlining map for Decatur, Illinois
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Mapping Inequality: Redlining in New Deal America

In the 1930s, the federal government created redlining maps for almost every major U.S. city. Explore those maps and their contexts in a brand new version of this project.
Side by side photos of Presidents Abraham Lincoln and Donald Trump.

How Republicans Went From the Party of Lincoln to the Party of Trump, in 13 Maps

It's been a remarkable transformation over 162 years.

Origins and Destinations of the World’s Migrants, from 1990-2015

Explore origin and destination totals of migrants from 233 countries between 1990 and 2015.
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The Forced Migration of Enslaved People

An interactive set of maps and narratives of the forced migration of approximately 850,000 enslaved people from 1810-1860.
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Foreign Born Population 1850-2010

An interactive map of immigrant populations in the United States.
Interactive map (above) and graph (below) showing the canals of the American Mid-Atlantic and Northeast, 1820 to 1860.
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Canals 1820-1890

An interactive map of U.S. canals in the first half of the 19th century.
Interactive map of the U.S. Overland Trails, 1840 to 1860, showing cross-country migration routes.
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The Overland Trails 1840-1860

An interactive map of overland trails that settlers followed on their western journeys.

This Haunting Animation Maps the Journeys of 15,790 Slave Ships in Two Minutes

315 years. 20,528 voyages. Millions of lives.

These Maps Reveal How Slavery Expanded Across the United States

As the hunger for more farmland stretched west, so too did the demand for enslaved labor.
Magellan’s ship, the Victoria, in the Pacific Ocean on the map of the New World.

The Land Divided, The World United

Building the Panama Canal.

Atlas of the Transatlantic Slave Trade

Nine maps of the transatlantic slave trade between 1500 and 1900.

Slave Voyages

This digital memorial raises questions about the largest slave trades in history and offers access to the documentation available to answer them.
Antiwar march on October 31, 1970. Marchers holding a banner reading "Chicano Power" and "Remember Reuben Salazar."

Mapping American Social Movements

Interactive maps showing the historical geography of influential American social movements since the late 19th century.
<p>Earth rising over the Moon, captured by Lunar Orbiter 1, 1966. Courtesy NASA/<a href="https://www.planetary.org/articles/1238" target="_blank" rel="noreferrer noopener">The Planetary Society</a></p>

How the Scientists of the 1960s Turned the Moon into a Place

For most of history, the Moon was regarded as a mysterious and powerful object. Then scientists made it into a destination.
Essay entitled "America," full of editorial markings.

America Is Not America Yet

On American history and the history of the word “America.”
Map of school segregation in the U.S. in 2024.

This Map Lets You See How School Segregation Has Changed in Your Hometown

The new interactive tool accompanies a study of school enrollment data, which shows that segregation has worsened in recent decades.
Art installation of cardboard pieces with the Amazon arrow logo, arranged in the shape of a cresting wave.

World in a Box: Cardboard Media and the Geographic Imagination

Cardboard boxes hold a world of meaning that spans from Amazon to the Container Corporation of America.
The Verrazzano-Narrows Bridge.

Five Centuries Ago, France Came to America

This is the story of Giovanni da Verrazzano, who never reached Asia, but became the first European to set foot on the site of the future city of New York.
Illustration of an AI machine reading a book.

How AI Can Make History

Large language models can do a lot of things. But can they write like an 18th-century fur trader?
Two men hiking.

Jews in the Wilderness

One man's role in shaping the nation's best-loved long-distance footpath reminds us of the close bonds that Jews have formed with the North American landscape.

Memorializing Racial Terror

An interactive map of lynching markers in the United States.
Hikers view the sunrise from a mountaintop.

Why the Famed Appalachian Trail Keeps Getting Longer — and Harder

As America has transformed, so too has its famous footpath. Less than half the A.T. remains where it was originally laid.
Train depot in Allston, MA.

Want to Protect the Historic Character of Massachusetts Cities and Towns? Take Away Their Power.

History shows that cities and towns have been poor stewards of what makes them special.
Watercolor of a whale destroying a boat of whalers.

Captain Joy’s Last Voyage

What a whaling captain’s logbook can teach us about sperm whales and our oceans.
A topographical map from the 1850s showing Alexander's Island as an entity in the Potomac

A Cartographer’s Lament: The D.C. - Virginia Boundary That Wouldn't Stay Put

Was this Virginia? No one was quite sure.
Republican Reps. Marjorie Taylor Greene (Ga.) and Jim Jordan (Ohio) during a House select subcommittee on the coronavirus pandemic in Washington. (Ricky Carioti/The Washington Post)
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Pandemic Origin Stories are Laced Through With Politics

Efforts to pinpoint early cases have been complicated, and in some cases compromised, by distractions and diversions.
US Signal Station on the trail to Pike’s Peak.

Civil War Weather

The U.S. Army's contributions to meteorology.
David Grim's map showing the damage that New York City suffered from two large fires.

David Grim’s Fairy Tale: The New York City Fire In Myth

We may never know with absolute certainty that the Great Fire was an accident, but Grim certainly made it harder for anyone to argue otherwise.

The Valley of the Shadow: Two Communities in the American Civil War

Explore the lives of people swept up in the great dramas of slavery, war, and emancipation in this updated version of the pioneering digital history project.

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