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Philadelphia committee led by Benjamin Franklin attempts to regulate waste disposal and water pollution
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Declaration of Independence
document that was approved by the Continental Congress -
Whiskey Rebellion
a violent tax protest in the United States -
Louisiana Purchase
acquisition of the territory of Louisiana by the United States from the French First Republic -
Henry David Thoreau publishes Walden
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The CIvil War
was a civil war in the United States. It was fought between the Union and the Confederacy, -
Battle of Gettysburg
The Battle of marked the turning point of the Civil War. -
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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Battle of the Little Bighorn
While the country celebrated its anniversary at the Philadelphia Centennial Exposition, on June 25, 1876, the 7th Cavalry under the command of Col. George Armstrong Custer was vanquished by Lakota and Northern Cheyenne warriors led by Sitting Bull in the Battle of the Little Bighorn. Although it was a major victory for the Northern Plains people against U.S. expansionism, the battle marked the beginning of the end of Native American sovereignty over the West. -
The term smog is coined by Henry Antoine Des Voeux in a London meeting to express concern over air pollution
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World War I
A war fought between two coalitions -
US Congress created the National Park Service
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Attack on Pearl Harbor
surprise military strike by the Imperial Japanese Navy Air service upon the United States. -
Korean War
A war fought between North Korea and South Korea -
Rachel Carson publishes Silent Spring
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The Apollo 8 picture of Earthrise
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First Earth Day – April 22. Millions of people gather in the United States for the first Earth Day. US Environmental Protection Agency established
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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 commit to reduce their emissions of carbon dioxide
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U.S. rejects the Kyoto Protocol
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September 11 attacks
series of airline hijackings and suicide attacks committed in 2001 by 19 militants -
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