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Philadelphia committee led by Benjamin Franklin attempts to regulate waste disposal and water pollution. -
Abigail Adams wrote John Adams a letter, in the latter Abigail makes a plea to her husband and the contiental congress to “remember the ladies and be more generous and favorable to them than your ancestors.." -
Elizabeth Blackwell was the first women to graduate from medical school and become a doctor in the United States. She attended college at Geneva in New York with the highest grades in her class. -
Sojourner Truth was formerly an enslaved worker. Now She is a Abolitionist and Women's Rights Activist. She is a motivational speaker, with her famous speech "Ain't I a Woman?" -
Henry David Thoreau publishes Walden -
The term ecology is coined in German as Oekologie by Ernst Heinrich Philipp August Haeckel
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Susan B. Anthony and Elizabeth Cady Stanton founded the National Woman Suffrage Association. -
Wyoming passes America's firsrt suffrage law, granting women the right to vote and hold office. -
The term acid rain is coined by Robert Angus Smith in the book Air and Rain
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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 -
Jennette Rankin , a longtime activist for the NWSA, is the first sworn in woman elected to Congress as the House of Representatives. -
Amelia Earhart becomes the first woman, and second pilot ever to solo nonstop across the Atlantic. -
Rosa Parks refuses to give up her seat to a white man on a bus in Montgomery, Ala. This launches the civil rights movement. -
Rachel Carson publishes Silent Spring -
Former President John F. Kennedy signs the Equal Pay Act. Prohibiting sex-based wage discrimination between men and women. -
The Apollo 8 picture of Earthrise -
First Earth Day – April 22. Millions of people gather in the United States for the first Earth Day. US Environmental Protection Agency established -
Sally Ride becomes the first American woman to fly in space. -
Montreal Protocol on substances that deplete the ozone layer entered into force -
The Kyoto Protocol was negotiated in Kyoto, Japan in December. Countries commit to reduce their emissions of carbon dioxide -
U.S. rejects the Kyoto Protocol -
U.S. announces it will cease participation in the Paris Agreement on climate change mitigation -
U.S. announces it will rejoin the Paris Agreement on climate change mitigation.