The 10

Provides information about ten notable explorers from around the world and throughout history, including Armstrong, Columbus, Drake, Polo and more.

Provides a brief overview of ten spies such as John Walker, Sarah Edmonds, Virginia Hall and others.

Examines ten notable women of the United States, including Eleanor Roosevelt, Wilma Rudolph, and Sally Ride.

Provides information about ten threats to life on Earth, including asteroid collisions, biological weapons, nuclear war, overpopulation, and pandemics.

Examines ten medical breakthroughs that significantly affect the lives of people around the world including vaccines, synthetic insulin, medical imaging and more.