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This is the day when the first Earth Day was celebrated
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This Amendment was ratified allowing people to vote at 18 rather than 21.
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The Aswan Dam was built on the Nile River between Egypt and Sudan to stop the Nile from flooding.
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The Environmental Protection Agency was created to protect human health and the environment.
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Cigarette ads no longer premiered on tv.
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Walt Disney World opens to the public in Orlando, Florida.
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The CT scan was introduced and invented by Godfrey Hounsfield. He was rewarded with a Noble Peace Prize for medical and science.
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The war is over and everyone has gone home. It is signed by the Paris Peace Accords.
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Bill Gates and Paul Allen formed a partnership called Microsoft that brought computers and desktops.
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A 7.8 earthquake hit Tangshan, China killing over 240,000 people. It was the deadliest earthquake of the 20th century.
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Elvis was found dead in a bathroom at Graceland. He died from a myocardial infarction.
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It was a pact signed by 15 countries to "curb" the spread of nuclear weapons.
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Lesley Brown was experimented in a fertilization procedure. The egg was implanted back into her and she gave birth to a 5lb 12oz baby girl.
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It started out as a "sports" section in newspapers, then it eventually turned into a tv channel.
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Mother Teresa wins a Nobel Peace Prize for helping the poor and curing sick people.
