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100
10,000 Years Ago: Agricultural Revolution
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275 Years Ago: Industrial Revolution
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John Muir
His letters, essays, and books telling of his adventures in nature, especially in the Sierra Nevada mountains of California, have been read by millions. His activism helped to preserve the Yosemite Valley, Sequoia National Park and other wilderness areas. -
Walden by Henry David Thoreau
This book is about his experience with two days in a cabin near Walden Pond -
Yellowstone National Park founded
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American Forestry Association
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Yosemite plus Sequoia National Park founded
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Sierra Club founded
It is one of the oldest, largest, and most influential grassroots environmental organizations in the United States. -
Lacey Act founded
It is a conservation law in the United States that prohibits trade in wildlife, fish, and plants that have been illegally taken, possessed, transported or sold. -
Period: to
Golden Age of conservation
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First National Wild life Refuge established
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Homestead Act