The transcontinental railroad's construction touched the lives of hundreds of thousands of people. Some desired it, some built it, and some did everything in their power to stop it. Browse a photo gallery of settlers, Native Americans, and workers whose lives were affected by the railroad as it traversed the West.
The unusual life of David Vetter, who lived permanently inside a germ-free environment due to severe combined immunodeficiency.
"The Wizard of Menlo Park," Inventor Thomas Edison, built the first practical light bulb and revolutionized the world.
A central figure in the narrative of how the west was won, Wyatt Earp and his story became an American legend. Part of the Wild West collection.
The effort of pioneering researchers to conceive babies through in vitro fertilization.
President Theodore Roosevelt was caught in the middle of the first major battle for wilderness preservation in Yosemite National Park.
Though first seen only as an expensive luxury, Alexander Graham Bell's telephone soon transformed American life and became a necessity.
William "Buffalo Bill" Cody's legendary exploits helped create the myth of the American West that still endures today.
In 1934, American polar explorer Richard Byrd became the first to experience winter in Antarctica's interior.