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The colonies adopt the English system decreeing women cannot own property in their own name or keep their own earnings.
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Philadelphia committee led by Benjamin Franklin attempts to regulate waste disposal and water pollution.
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Mississippi, the first state to grant women the right to hold property in their own names with their husbands permission.
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At Seneca Falls, New York, 300 women and men sign the Declaration of Sentiments, a plea for the end of discrimination against women.
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Henry David Thoreau publishes Walden
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It was part of the first nation drive to focus on women's voting rights. The petition asks for an amendment to the constitution that prohibits several states from disfranchising any citizens on grounds of their gender.
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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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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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The federal woman suffrage amendment is passed by the house of representatives and the senate. Then it was sent to the states for ratification.
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the passing of the amendment allowing women the right to vote took place.
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The National Recovery Act forbids more than one family member from holding a government job, resulting in many women losing their jobs.
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Rachel Carson publishes Silent Spring
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The Equal Pay Act is passed by Congress, promising equitable wages for the same work, regardless of the race, color, religion, national origin or sex of the worker.
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The Apollo 8 picture of Earthrise
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Landmark Supreme Court ruling Roe v. Wade makes abortion legal. The Supreme Court in a separate ruling bans sex-segregated "help wanted" advertising.
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Montreal Protocol on substances that deplete the ozone layer entered into force
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Madeleine Albright become the first female secretary of state.
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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
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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