Major Walter Reed's discovery in 1900 that mosquitoes spread yellow fever halted an outbreak and led to the disease's eventual eradication.
A Utah farm boy builds a prototype for a television, but is thwarted by movie studio executives wanting to control the technology.
In 1934, American polar explorer Richard Byrd became the first to experience winter in Antarctica's interior.
The internationally famous carnival of delights in New York was the birthplace of the hot dog and the roller coaster.
Robert Moses fueled some of the most ambitious -- and controversial -- public works projects ever conceived.
The historic journey of Apollo 8 captivated the world in 1968 -- a bright spot in a year marked by political assassinations, race riots, and the Vietnam War.
George Eastman introduced the Kodak and Brownie camera systems and transformed photography into something anybody could do.
Robert Noyce's invention of the microchip launched the world into the Information Age.