The first around-the-world air race was sponsored to prove that the airplane had a commercial future. Four pilots took off from Seattle and two returned 175 days later.
Major Walter Reed's discovery in 1900 that mosquitoes spread yellow fever halted an outbreak and led to the disease's eventual eradication.
At the height of segregation, an unlikely alliance between a black medical genius and a white surgeon led to a pioneering medical breakthrough.
George Eastman introduced the Kodak and Brownie camera systems and transformed photography into something anybody could do.
In 1934, American polar explorer Richard Byrd became the first to experience winter in Antarctica's interior.
Postwar New York City and the global economic order told through the story of the World Trade Center.
It was the deadliest workplace accident in New York City’s history.
Engineered by William Barclay Parsons, the 21-mile, four-track route of the New York City Subway was the largest public works project in history.
The remarkable story of mid-19th century ingenuity and perseverance during the laying of the transatlantic telegraph cable between North America and Europe.