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3:33
Watch a clip from "Freedom Summer" premiering June 24, 2014 on American Experience PBS.

23:27
Shattering the foundations of white supremacy. Freedom Summer premieres on June 24, 2014.

9:35
Watch a preview of Part Two of The Vote.

7:59
In 1910 the largest fire in U.S. history burned over three million acres.

2:35
Roosevelt and Pinchot make a plan to save America's wilderness. Premieres Feb. 3 on PBS.

2:58
In the early 1900s, timber was an essential US product. Premieres Feb. 3 on PBS

2:54
Fire was essential to the survival of the new US Forest Service. Premieres Feb. 3 on PBS.

2:19
Firefighters are regaled as heroes for the first time in America. Premieres Feb. 3 on PBS.

1:45
In 1910 the U.S. Forest Service was desperately understaffed. Premieres Feb. 3 on PBS.

9:22
Before he was a legendary inventor, Thomas Edison was a telegraph operator.

2:14
Edison's phonograph was a sensation. Premiering Jan. 27 on PBS.

2:27
Edison unveiled his electric light on New Year's Eve 1879. Premiering Jan. 27 on PBS.