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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
The Declaration of Independence is a government written letter to state what our government and are identity as states are based of. -
Louisiana Purchase
The Louisiana Purchase was a land deal between the US and France which allowed the US to acquire 827,000 miles of land. -
Battle of New Orleans
The Battle of New Orleans, a frontal assault in January 1815 by a superior British force, inflicting devastating casualties along the way. -
Monroe Doctrine
The Monroe Doctrine was used to separate spheres of influence for the Americas and Europe, non-colonization, and non-intervention -
Era of the Common Man
Jackson's election to the presidency was based on the fact that he himself did not come from a wealthy, aristocratic background -
Henry David Thoreau publishes Walden
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Battle of Gettysburg
T he Battle of Gettysburg was fought July 1–3, 1863, in and around the town of Gettysburg, Pennsylvania, by Union and Confederate forces during the American 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 Little BigHorn
The engagement was one in a series of battles and negotiations between Plains Indians and U.S. forces over control of Western territory, collectively known as the Sioux Wars. In less than an hour, the Sioux and Cheyenne had won the Battle of the Little Bighorn, killing Custer and every one of his men -
Haymarket affair
The Haymarket affair, also known as the Haymarket massacre was the aftermath of a bombing that took place at a labor demonstration on May 4, 1886, at Haymarket Square in Chicago, Illinois, United States. -
Plessy V. Furguson
Plessy v. Ferguson, 163 U.S. 537, was a landmark U.S. Supreme Court decision ruling that racial segregation laws did not violate the U.S. Constitution as long as the facilities for each race were equal in quality, a doctrine that came to be known as "separate but equal". -
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
It started in September, when share prices on the New York Stock Exchange (NYSE) collapsed, and ended in mid-November. The pivotal role of the 1920s' high-flying bull market and the subsequent catastrophic collapse of the NYSE in late 1929 is often highlighted in explanations of the causes of the worldwide Great Depression. -
— 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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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