Mapping early New York

See how New York City has grown since 1609

Wall Street and the southern tip of Manhattan were the first parts of the island to be developed beyond farmland by Dutch and English settlers. It wasn’t long until New York City resembled the city we know today.

The evolution of New York City

Originally founded as New Amsterdam, this interactive timeline lists out and provides deep dives on the major events that shaped New York City as it became America's foremost cultural and economic hub.

A timeline of Wall Street's history

Wall Street's historical timeline starts with Wall Street getting its name in the 1600s and ends with details about the Occupy Wall Street movement in 2011.

New York was once called New Amsterdam

Although New York has a long history, it wasn’t actually called “New York” until the late 1600s, when the English beat out the Dutch for control of the area. In 1664, Dutch Governor Peter Stuyvesant surrendered what used to be known as “New Amsterdam” to the English, who renamed it New York after the Duke of York.

Wall Street has come a long way since the 1600s

Wall Street originated as part of a Dutch settlement and soon became the nation's financial hub. But Wall Street has since morphed into eight blocks of luxury gyms and apartments.

The architectural evolution of New York City's Chinatown

Cityscapes continuously evolve, and each stage in their transformation tells a unique story. In Manhattan's Chinatown from the 1940s to today, the architecture has bloomed from an ethnic conclave for often mistreated migrants to a vibrant cultural hub today. See varying elevations and facades over time.

In 1711, the New York City Common Council decided that the city’s slave market would operate on Wall Street

In 1711, the New York City Common Council decided that the city’s slave market would operate on Wall Street. Back then, the nation’s economy rode on the backs of slave labor and the slave trade itself—meaning that the slave market’s location was an economic hub for the city.

See a timeline of colonial settlement in North America

This interactive timeline uses archival maps, illustrations, and documents to trace early American history—from the failed 1590 Roanoke colony and Indigenous accounts of a devastating smallpox epidemic to the political tensions that culminated in the Revolutionary War.

The origin and history of stock exchanges

When were stocks first sold? Though debt was first sold in Venice in the 14th century, stocks proper began in the Netherlands. To fund its spice trade across the world in 1602, the Dutch East India Company sold stocks to individual investors, a novel approach to raising funds. It was the Dutch West India Company that founded New York—the site of some of the world’s greatest stock exchanges. Listen to a concise historical overview here.

An AI-built pixel map reimagines New York City as a video game

Isometric NYC is a zoomable pixel-art map that renders the city in game-style perspective (think SimCity), helpfully clarifying the dense geography and architecture. The makers built the project tile-by-tile using satellite data and generative AI. Zoom into building-level views or out to see all five boroughs.

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.

Essential pipes, sewers, and cables lie buried beneath New York City

The Department of Design and Construction offers a tour of its work sites, explaining the complex systems that exist underground. Gas, electrical, telecom pipes, and many others, sprawl out underneath the entire city, with dozens of maps that help workers know where they're placed. This layout is unusual compared to the rest of the country, where wires are often present and visible above ground.

DeWitt Clinton’s “Big Ditch” gamble transformed New York

Mocked as “Clinton’s Folly” and “Clinton’s Big Ditch,” New York Gov. DeWitt Clinton championed the Erie Canal against skeptics. His political drive secured funding for the project in 1817.

View depictions of world maps throughout history

The first map to use latitude and longitude positions was created by Ptolemy in 150 CE, over 700 years after the oldest known world map, the Imago Mundi, was made with a Babylonian clay tablet. The Spanish crown created a secret master map from hundreds of sailors’ reports.

15,000 people from over 20 nations lived in these Lower East Side tenements

The Tenement Museum recreated authentic immigrant homes using artifacts from historic buildings that housed diverse communities between 1863 and 2011. Take a digital tour that explores the immigrant experience through carefully preserved living spaces and belongings.

The history of New York's first hotel for middle-class women

March 2, 1903, marked the opening of New York's first hotel just for women, generally from the middle class. Prior to the establishment of the "Women's Hotel," it was difficult for solo women to find lodgings in the city. Seeing an opportunity, Charles Day Kellogg raised funds to establish the 400-room hotel, which exclusively served women until 1998. Read more about its history here.

The early years of the Met

The Met didn’t start out in the grand, sprawling grounds that it currently occupies. This episode of Hometown History, a podcast about lesser-known historical places and events, covers the early years of the venerable institution. Learn about how the vision and planning of a group of 19th century artists and philanthropists took the Met from a small collection in a humble brick building to the cultural powerhouse that it is today.

See a data visualization of the East India Company's trade

This tool visualizes the East India Company’s trade from 1760 to 1834, letting you track shipments of tea, textiles, metals, and more. Users can sort by commodity, origin, destination, and date to see London’s vast imperial supply network that shaped the British Empire.

Urban planning in ancient Rome

Ancient Rome represents one of the earliest examples of coordinated urban planning from a central government for which researchers have access to contemporary records. This review from MIT showcases ancient Roman cities built on various types of grids, from rectangular outlines to those shaped around two intersecting axes, with several examples and maps provided for each.

Mapping Russia's historical borders

This interactive map illustrates how the country’s borders have changed over the centuries, dating all the way back to the year 862, when the Varangian king Rurik assumed leadership of Ancient Rus. Scroll down to see how Russia vastly expanded its territory in the 16th and 17th centuries, and skip to 1991 to see which countries gained independence after the fall of the USSR.

Lombardi's was the first documented pizza restaurant in the US

The New York establishment opened in the early 1900s and was a cornerstone of Manhattan's SoHo. At one point, it was open 23 hours a day, allowing laborers of the predominantly Italian-American community to stop by for pies before or after work.

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.

Mortgages evolved from exclusive agreements for the wealthy into a key part of homeownership today

The word "mortgage" comes from medieval French, meaning "death contract"—but the modern American mortgage has a more recent and complicated history. This explainer looks at how mortgages evolved from exclusive agreements for the wealthy into a key part of homeownership today, including the impacts of New Deal policies, redlining, and the Fair Housing Act.

The Rockefellers funded the restoration of Colonial Williamsburg

John D. Rockefeller Jr. and his wife spent millions of dollars restoring Colonial Williamsburg and turning it into the tourist attraction it is today. You can go back in time via video footage from before and after the restoration.

Explore an interactive map of battles from the American Revolution, along with detailed summaries of each engagement

The origin of shortest-path algorithms and how they became optimized for navigation apps

In 1956, Dutch programmer Edsger Dijkstra spent about 20 minutes developing an algorithm to demonstrate how computers could quickly determine the shortest route between Rotterdam and Groningen. Since then, modified versions of Dijkstra's formulation comprise the processing backbone of systems such as Google Maps and Apple Maps.

Trace how the Bill of Rights, inspired by centuries of political theory, took shape between 1774 and 1789.

Stanford built a Google Maps for the Roman Empire, revealing how much it cost to travel in the ancient world

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

The 19th-century painters of the Hudson River School were among the first American romantics, with portraits that displayed the natural beauty of the young country.

Graffiti dates back to at least ancient Pompeii, where citizens scrawled messages to one another on public walls

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

Visualize the path of every solar eclipse from 1900 to 2099 and see what each looks like when observed from different locations on Earth.

The idea for the Federal Reserve was conceived in secret in 1910—with bankers donning duck hunt gear for disguise while traveling to a remote country club on Georgia's Jekyll Island

Watch this video that uses Lego bricks to explain how venture capital works.

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.

A century of Billboard issues documenting the evolution of popular music.

For centuries, it was common to sleep in two shifts: a few hours at the beginning of the night, and a longer period beginning around midnight

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

US housing costs have risen by roughly 175% between 1991 and 2026—but a growing number of Gen Zers are becoming homeowners anyway. In 2025, 4% of homebuyers were Gen Z, up from 3% the year before.

At the beginning of the 20th century, a group of young men ate standard American food—replete with food additives like borax and formaldehyde—as part of government research to better understand food safety.

This real-time tracking of the hantavirus cruise ship outbreak in May 2026 offers a unique glimpse into the global reach of the outbreak and whether the virus sickened passengers and their communities around the world.

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.

Watch a 1934 short film starring jazz legend Cab Calloway, a major figure in the Harlem Renaissance's music scene

Long before Major League Baseball began allowing instant replay for balls and strikes, an umpire reluctantly used the technology to determine whether a hit was a home run, a move that inadvertently ushered in a new era for the sport.

Gerrymandering works through two techniques: cracking opposing voters across districts to dilute their power, and packing them into a few to waste their votes in lopsided majorities.

Objects can be 3D printed with light by projecting 2D computerized tomography (CT) scans onto rotating cylinders of resin, which solidify upon exposure.

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.

Alzheimer's can lead to brain shrinkage, with an average of around 2% of volume reduction per year