An unemployed painter named Richard Lawrence attempted to assassinate President Andrew Jackson in January 1835.

The Attempted Assassination of Andrew Jackson

A madman, a conspiracy and a lot of angry politicians

"Numbers are a human invention, and they’re not something we get automatically from nature," says Caleb Everett.

How Humans Invented Numbers—And How Numbers Reshaped Our World

Anthropologist Caleb Everett explores the subject in his new book, <em>Numbers and the Making Of Us</em>

The Featured Works display at the American Writers Museum in Chicago.

America's First Writers Museum Is Slated to Open in May

A new home for celebrating American literary titans, titles and traditions takes root in Chicago

For years, boys at Fernald State School were subjected to experiments using radioactive tracers in oatmeal.

A Spoonful of Sugar Helps the Radioactive Oatmeal Go Down

When MIT and Quaker Oats paired up to conduct experiments on unsuspecting young boys

Puerto Ricans were granted U.S. citizenship on the eve of America's entry into the First World War. This picture comes from 1906 and shows the officer staff of the Regiment of Infantry.

Puerto Ricans Got U.S. Citizenship 100 Years Ago—But Their Identity Remains Fraught

Even a century later, those who live in the U.S. territory have little autonomy

How a Soap Opera Virus Felled Hundreds of Students in Portugal

The “Strawberries With Sugar” outbreak is just one example of mass hysteria, which goes back centuries

The cartoon by Thomas Nast shows the battles between President Johnson and Congress over Reconstruction.

The Political Cartoon That Explains the Battle Over Reconstruction

Take a deep dive into this drawing by famed illustrator Thomas Nast

The 38,000-year-old woolly mammoth carving next to Georges Seurat's "A Sunday on La Grande Jatte." Despite the vast amount of time between their respective creations, both use a collection of dots to form a larger image.

Prehistoric Pointillism? Long Before Seurat, Ancient Artists Chiseled Mammoths Out of Dots

Newly discovered 38,000-year-old cave art predates the French post-Impressionist art form

Children have been crippled by land mines in Cambodia.

The Historic Innovation of Land Mines—And Why We've Struggled to Get Rid of Them

A number of researchers are developing tools to defuse or detonate land mines without harming civilians

Hitler used the Reichstag fire in 1933 to seize almost unlimited power.

The True Story of the Reichstag Fire and the Nazi Rise to Power

When the German parliamentary building went up in flames, Hitler harnessed the incident to seize power

The Great Wall of China is a remarkable work of architecture—but there are plenty of myths surrounding it.

Sticky Rice Mortar, the View From Space, and More Fun Facts About China’s Great Wall

The not-so-effective wall was a lengthy, pricey project that stretched across thousands of years

At the National Women's Conference in Houston, Texas, 20,000  women convened to debate the issues that affected them. Here, Congresswoman Bella Abzug (D-N.Y.), wearing her trademark hat, and Betty Friedan (left, in red coat).

The 1977 Conference on Women's Rights That Split America in Two

Feminism and the conservative movement clashed over issues such as abortion and LGBTQ rights

A segregated bus stop in North Carolina.

The Complicated Racial Politics of Going “Undercover” to Report on the Jim Crow South

How one journalist became black to investigate segregation and what that means today

When Charles Sumner spoke out against slavery in 1856, he incurred the violent wrath of congressman Preston Brooks.

In the Congressional Fight Over Slavery, Decorum Went Out the Door

Amid today's dissent over proper Senate behavior, take a look back at when an assault in the Senate divided the nation

Now on display in the museum’s “Musical Crossroads” exhibition, the boombox is a striking symbol of the early years of hip-hop.

The Ballad of the Boombox: What Public Enemy Tells Us About Hip-Hop, Race and Society

Thirty years after Public Enemy's debut album, the group's sonic innovation and powerful activism resonate powerfully today

Immigrants outside a building on Ellis Island, circa 1900.

Literacy Tests and Asian Exclusion Were the Hallmarks of the 1917 Immigration Act

One hundred years ago, the U.S. Congress decided that there needed to be severe limits on who was coming into the country

New England Patriots mascot Pat Patriot high-fives a minuteman after an NFL football game against the New York Jets, Oct. 16, 2014.

Ten Fun Facts About the Original Patriots

The football team may only have a 57-year history, but its mascot stretches back to the country's foundation

Demonstrators hold portraits of some of the victims of the Montréal Massacre during the National Day of Remembrance and Action on Violence Against Women rally on Parliament Hill in Ottawa December 6, 2011.

The Mass Shooting That Reshaped the Canadian Debate About Guns and Political Identity

The 1989 Montreal Massacre set the stage for discussions about insane killers and targeting women

The horse mandible marked by traces of stone tools, which might prove humans came to North American 10,000 years earlier than previously believed.

Humans May Have Arrived in North America 10,000 Years Earlier Than We Thought

A 24,000-year-old horse jawbone is helping rewrite our understanding of human habitation on the continent

The Portal exhibition at the U.S. Holocaust Museum, offering a chance to have a conversation with refugees.

What Is it Like to Be a Refugee? Here’s Your Chance to Ask One

At the U.S. Holocaust Museum, an immersive video chatting experience allows you to talk in real-time with refugees living in camps

Page 8 of 9