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Philadelphia committee led by Benjamin Franklin attempts to regulate waste disposal and water pollution.
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The 13 American colonies served their political connections to Great Britain.
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The constitution of the United States established America's national government and fundamental laws.
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Was a land deal between the United States and France.
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The British marched against New Orleans, hoping that by capturing the city they could separate Louisiana from the rest of the United States.
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President James Monroe articulated United States policy on the new political order developing in the rest of the Americas and the role of europe in the western hemisphere.
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The years from about 1824-1840 have been called the age of jacksonian democracy and the era of the common man
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Henry David Thoreau publishes Walden
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When the union and confederate forces collide at Gettysburg, Pennsylvania.
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The term ecology is coined in German as Oekologie by Ernst Heinrich Philipp August Haeckel
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The term acid rain is coined by Robert Angus Smith in the book Air and Rain
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A holding company to control the three railroads, with himself as president.
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The term smog is coined by Henry Antoine Des Voeux in a London meeting to express concern over air pollution
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US Congress created the National Park Service
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Stock Market Crash of 1929, also called the Great crash, a decline in U.S. stock market value in 1929 that contributed to the Great Depression of 1930.
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Rachel Carson publishes Silent Spring
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The Apollo 8 picture of Earthrise
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Earth Day – April 22., millions of people gather in the United States for the first Earth Day organized by Gaylord Nelson, former senator of Wisconsin, and Denis Hayes, Harvard graduate student. US Environmental Protection Agency established
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Five men broke into the democratic national committee headquarters at the watergate hotel and office complex in Washington D.C.
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Montreal Protocol on substances that deplete the ozone layer entered into force
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The Kyoto Protocol was negotiated in Kyoto, Japan in December. Countries that ratify this protocol commit to reduce their emissions of carbon dioxide and five other greenhouse gases
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U.S. rejects the Kyoto Protocol
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U.S. announces it will cease participation in the Paris Agreement on climate change mitigation
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U.S. announces it will rejoin the Paris Agreement on climate change mitigation
