When two passenger ships collide off Nantucket in 1909, 1,500 people rely on 26-year-old Jack Binns to operate a new technology - wireless telegraphy - to save them all.
Though first seen only as an expensive luxury, Alexander Graham Bell's telephone soon transformed American life and became a necessity.
Politics, culture, race relations, and technology in a year of change.
Robert Moses fueled some of the most ambitious -- and controversial -- public works projects ever conceived.
A brilliant scientist, Oppenheimer was tasked with the development of the atomic bomb during World War II.
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 Pennsylvania Railroad Company accomplished an enormous engineering feat, but destroyed a great architectural monument.
George Eastman introduced the Kodak and Brownie camera systems and transformed photography into something anybody could do.