Explores how new technologies, including the cultivation of plants and animals, the use of fire, and the invention of writing, influenced the development of humankind from prehistoric times through the classical period.
Explores how technological discoveries and advances during the nineteenth century, including the spread of the railroads, the electric telegraph, and the telephone, influenced life on Earth.
Explores how technological advances in the early twentieth century, including television, radio, radar, and computers, laid the foundation for many modern inventions that have changed life on Earth.
Explores the technological advances that took place during the late twentieth and early twenty-first centuries and discusses how they impacted life on Earth.
Presents an account of the Marines who came together during the battle of Iwo Jima to raise the American flag in a moment that has been immortalized in one of the most famous photographs of World War II.
High Constable Jacob Hays, the first detective in New York City, takes on a casein 1841 that consumes the remaining years of his career when he sets out to investigate a series of murders linked to gang wars, grave robbers, and cryptic clues in the poems of Edgar Allan Poe.
Discusses Al Gore's commitment to global warming, examining what influenced his activism and the work he has done to promote awareness of the problem and prevent global temperature changes.
