The international race to develop biological weapons during the 20th century.
A Utah farm boy builds a prototype for a television, but is thwarted by movie studio executives wanting to control the technology.
The U.S. and the Soviet Union race to build the hydrogen bomb during the Cold War, thus beginning the nuclear arms race.
George Eastman introduced the Kodak and Brownie camera systems and transformed photography into something anybody could do.
The Pennsylvania Railroad Company accomplished an enormous engineering feat, but destroyed a great architectural monument.
Engineer James Eads tamed the mighty Mississippi, turning New Orleans into the second largest port in the nation.
During the Great Depression, Americans built the Hoover Dam, one of the greatest engineering works in history.
Politics, culture, race relations, and technology in a year of change.