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Philadelphia committee
Philadelphia committee led by Benjamin Franklin attempts to regulate waste disposal and water pollution. -
Declaration of Independence
The Declaration of Independence is the pronouncement adopted by the Second Continental Congress meeting in Philadelphia, Pennsylvania, -
Constitution of the United States of America
The Constitution of the United States is the supreme law of the United States of America. This founding document, originally comprising seven articles, delineates the national frame of government. -
Whiskey Rebellion
The Whiskey Rebellion was a tax protest in the United States -
Louisiana Purchase
The Louisiana Purchase was the acquisition of the territory of Louisiana by the United States from France -
Battle of New Orleans
The Battle of New Orleans was fought between the British Army under Major General -
Monroe Doctrine
The Monroe Doctrine was a United States policy that opposed European colonialism in the Americas. It argued that any intervention in the politics of the Americas by foreign powers was a potentially hostile act against the United States. -
Era of the Common Man
Andrew Jackson, the U.S. president was said to have ushered in the Era of the Common Man. But while suffrage had been broadly expanded beyond men of property, it was not a result of Jackson’s efforts. -
Treaty of Guadalupe Hidalgo
The Treaty of Guadalupe Hidalgo, officially titled the Treaty of Peace, Friendship, Limits and Settlement between the United States of America and the Mexican Republic, -
Henry David Thoreau publishes Walden
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Dred Scott Decision
The Dred Scott decision was the U.S. Supreme Court's ruling that having lived in a free state and territory did not entitle an slaved person, Dred Scott, to his freedom. -
Battle of Gettysburg
The Battle of Gettysburg, is considered the most important engagement of the American Civil War. After a great victory over Union forces at Chancellorsville. -
The term ecology
The term ecology is coined in German as Oekologie by Ernst Heinrich Philipp August Haeckel -
The term acid rain
The term acid rain is coined by Robert Angus Smith in the book Air and Rain -
The term smog
The term smog is coined by Henry Antoine Des Voeux in a London meeting to express concern over air pollution -
US Congress
US Congress created the National Park Service -
US Congress
US Congress created the National Park Service -
Rachel Carson publishes Silent Spring
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The Apollo 8 picture of Earthrise
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Earth Day
Earth Day , 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 -
Montreal Protocol
Montreal Protocol on substances that deplete the ozone layer entered into force -
The Kyoto Protocol
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 -
U.S. rejects the Kyoto Protocol
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U.S
U.S. announces it will cease participation in the Paris Agreement on climate change mitigation -
paris agrrenment
U.S. announces it will rejoin the Paris Agreement on climate change mitigation
