Two-time winner of the Pulitzer Prize David McCullough tells the dramatic story-behind-the-story about the courageous brothers who taught the world how to fly: Wilbur and Orville Wright.

On a winter day in 1903, in the Outer Banks of North Carolina, two unknown brothers from Ohio changed history. But it would take the world some time to believe what had happened: the age of flight had begun, with the first heavier-than-air, powered machine carrying a pilot.

Who were these men and how was it that they achieved what they did?

David...