In the early 1830s, Texas, ruled by Mexico, held 20,000 U.S. settlers and 4,000 Mexican Tejanos, forcing residents to pick sides.
A Utah farm boy builds a prototype for a television, but is thwarted by movie studio executives wanting to control the technology.
John Wesley Powell's epic journey into the unknown Grand Canyon was filled with adventure as his team mapped the Colorado River for the first time.
The most daring and innovative accomplishment at the turn of the 20th century.
While the U.N. debated strategies for control of atomic energy, the U.S. Navy was preparing for nuclear tests on Bikini Island.
The unusual life of David Vetter, who lived permanently inside a germ-free environment due to severe combined immunodeficiency.
A brilliant scientist, Oppenheimer was tasked with the development of the atomic bomb during World War II.