Shop owners describe watching locals loot their store during the NYC blackout of 1977.
On the night of July 13, 1977, lightning strikes took out several critical power lines, causing a catastrophic power failure and plunging the New York City area into darkness.
Watch Chapter 1 of Blackout.
"The civilization that was New York came unglued for 24 hours, and that's what our story is about."
Starting in the 1840s, health-seekers fanned out across the United States in search for "the cure."
As the scientific knowledge of tuberculosis progressed, the prejudice towards people with the disease eased.
As tuberculosis plagued the nation, towns like Los Angeles and Denver grew as health-seekers traveled west to climates that promised to cure.
By the dawn of the 19th century tuberculosis had killed one in seven of all the people who had ever lived.
Watch the opening scene of The Forgotten Plague.
In 1910, a wildfire burned an area the size of Connecticut and killed at least 78 firefighters in just 36 hours.
At the turn of the 20th century, Gifford Pinchot was the nation's preeminent forester.
Chief Forester Gifford Pinchot saw fighting forest fires as being essential to the new Forest Service's mission.