Harnessing fire gave us the power to create, to destroy and to transform. But it also taught us hard lessons about what we can and cannot control. This is the story of how fire transformed our biology and carried us from the savannah to the moon.

Microscopic armies have waged war on humanity for thousands of years. Medicine is our great weapon to fight back against invisible, unthinkable death.

Money is the most successful story imagined by humans, because it's the only story everyone believes. From a simple act of trade to the greed for gold to today’s global economy, the meaning of money and what we value changes as civilization evolves. If modern money is a reflection of who we are, what does it say about us?

A look at how the ability to communicate impacted the human race.

The world's populations seem to be in a constant state of war.

From bone huts to skyscrapers, our shelters have evolved with us, every step of the way.

Our primal curiosity has sparked new inventions and revealed the mysteries of the universe.

Engines and animals powered the rise of civilization, driving humanity into the modern world.