Visitors pose atop Arch Rock, a geological formation on Mackinac Island.

How America’s Second National Park Lost Its Federal Status—and Gained a New Life as a State Park

Much of Mackinac Island was designated as a national park, but was too expensive for the government to maintain, so it was transferred to the State of Michigan.
The first British gravestone in the American colonies, a slab of black limestone with an engraving of a knight.

America’s Oldest Surviving Tombstone Probably Came From Belgium

How researchers analyzed limestone to determine the age and origins of the grave maker, which marked the final resting place of a prominent Jamestown colonist.
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.
Picture of a calculator and a shopping basket of fresh produce.

What Online Inflation Calculators Can—and Can't—Tell Us About the Past

Most of these tools are based on the Consumer Price Index, a measure of changing prices in the U.S. over time
Ralph Samuelson water skiing

The Man Who Invented Water Skiing

One hundred years ago, Ralph Samuelson successfully skied across the waters of Lake Pepin.
Skiers queuing to get on The Dollar lift.

How a Railroad Engineer From Nebraska Invented the World's First Ski Chairlift

The device was part of an elaborate plan on behalf of Union Pacific to boost passenger rail travel in the American West.