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some students from Kent University in Ohio were killed and wounded by National Guards during a protest against the Vietnam War
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A ban on the TV advertisement of cigarettes goes into effect in the United States
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Disney World opens in Florida expanding the Disney Empire to the east coast of the United States
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The United States Supreme Court ruled in Roe vs Wade that a woman cannot be stopped by a state in having an abortion during the first six months of pregnancy
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President Nixon resigns out of presidency. Nixon was the first president to ever resign from office
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The Viking 1 space probe successfully lands on Mars. The first color photos of the surface of Mars are taken on this flight
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29 people attending an American Legion convention in Philadelphia are killed by a mysterious gas, one year later it was discovered as a bacterium.
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Microsoft becomes a registered trademark one year after its name for microcomputer software is first mentioned by Bill Gates to Paul Allen in a letter.
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15 nations including the United States and the Soviet Union sign a nuclear-proliferation pact slowing the spread of nuclear weapons around the world.
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In one of the first articles on the subject of human cloning the New York post prints an article on the book The Cloning of Man which supposes the cloning of a human being.
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An accident at the Three Mile Island nuclear power plant in Middletown, Pennsylvania occurs. It is the largest accident in United States nuclear power history and considered the worst until the Soviet Chernobyl accident seven years later.