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Also known as the Neolithic Revolution, was when people first started food production and did not just hunt and gather.
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The industrial revolution was a time period when people were switching from hand production to machines.
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John Muir was an author, naturalist, and an early advocate of wilderness preservation. His acivism helped save any wilderness ares like Yosmite Valley, Sequoia National Park.
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"Walden" is a novel written to tell the details of a two year, two month, two day experience in a cabin near Walden Pond.
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The Homestead Act granted people in the United States land for farming if the met the criteria to obtain the free land.
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Yellowstone was the first national park in the world. Congress passed the law to make it a national park in 1872 and it was signed by President Ulysses S. Grant.
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Non-profit conservation organization dedicated to protecting forests and promoting healthy eco-systems.
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The Yosemite National Park spans 747,956 acres across the eastern United States. The park is known for its cliffs, waterfalls, clear streams, Giant Sequoia grove, and biological diversity.
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The Sierra Club was one of the first environmental organizations in the world and is still around today.
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The Lacy Act was put into action to punish those who break the laws against wildlife preservation.
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The refuge is called Pelican Island National Wildlife refugee in Florida by Roosevelt. It was created to protect endargered birds.
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administers the nation's national forests and grasslands.
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Pinchot is known for reforming the management and development of forests in the United States and for advocating the conservation of the nation's reserves by planned use and renewal. He called it "the art of producing from the forest whatever it can yield for the service of man."
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It was a public works project intended to promote environmental conservation and to build good citizens through vigorous, disciplined outdoor labor. Close to the heart of President Franklin D. Roosevelt, the CCC combined his interests in conservation and universal service for youth.
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Late in the 1950s, Carson turned her attention to conservation, especially environmental problems that she believed were caused by synthetic pesticides. The result was Silent Spring (1962), which brought environmental concerns to an unprecedented share of the American people.
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Earth Day is an annual event, celebrated on April 22, on which events are held worldwide to demonstrate support for environmental protection.
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Between 1990-1 Theodore Roosevelt made laws to change the way people treat wildlife.
