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End of WWI Treaty of Versailles- 6/28/1919

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End of WWI Treaty of Versailles- 6/28/1919

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On June 28th, 1919 Germany and the Allied nations (as well as Britain, France, Russia, and Italy) signed the Treaty or Versailles, ending the war.  As WWI was occurring the Treaty of Versailles caused peace between Germany and the Allied powers and ended the state of war. Without this event the occurrence of WWI would still be happening past June of 1919 as the treaty saved many soldiers lives.

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The Great Depression was an economic decline that lasted 43 months in the early 1930's. This event occurred due to the stock market crash in 1929. During this time the unemployment rate reached 25%. By the end of WWII the effects of the great depression were restored.

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The Holocaust was a genocide of the Jewish during WWII. This organized by Germany's Nazi party led by Adolf Hitler. 2/3 (approximately 6 million) of the European Jews where murdered. They had to experience forced labor in concentration camps. Most died from gas chambers and malnutrition.

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On April 30th, 1945, Adolf Hitler committed suicide in his bunker at his headquarters in Berlin. He died by  swallowing a cyanide capsule as well as shooting himself in the head. Hitler's death led some with joy and others with displeasure. Did Hitler kill himself because he was afraid someone else would do it first? We will never know.

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Bombing of Hiroshima and Nagasaki 8/6/1945-8/9/1945

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Bombing of Hiroshima and Nagasaki 8/6/1945-8/9/1945

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August 6th of 1945 during WWII the United States sent a B-29 bomber to drop the world's first ever atomic bomb over the Japanese city Hiroshima. The bomb took out 90% of the whole city killing over 80,000 people. On August 9th another B-29 bomber was sent to another Japan city Nagasaki. This time killing around 40,000 individuals. On August 15th, 1945, Japan's Emperor addressed to fully surrender in WWII. Schools, churches, and homes simply vanished. Transportation was impossible. But to this day both Hiroshima and Nagasaki have sculptures, museums, parks, and peace ceremonies so no one forgets.

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James Watson and Francis Crick are best known for discovering DNA in 1953. But some argue if Watson and Crick actually discovered DNA. As the Swiss chemist Friedrich Miescher first identified DNA in the 1860s. However we do know Watson and Crick did indeed discover the double helix, twisted ladder structure of DNA.

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On October 4th, 1957, at 7:28pm Sputnik was launched. Sputnik was a imitation Earth satellite. The Soviet Union had launched it into a orbit where it had reached a orbit height of 359mi and a maximum speed of 18,020mph. It was orbiting for 3 weeks until it's battery died. Then it was there 2 months until it had fallen back into the atmosphere.

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In October 1962 the Cuban Missile Crisis occurred in which were Soviet Union and US leaders were associated with the 13 day military and political standoff. The Soviet Union had secretly began to install nuclear-armed missiles into Cuba to launch attacks on US cities. It was a threat due to it's distance of 90mi to US shores. It resolved by Soviet agreeing to remove the missiles in promise for US to respect Cuba's self government.

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Neil Armstrong became the first ever human to take step on the moon in 1969. Neil and Buzz Aldrin walked the moon for 3 hours. They collected pieces of moon dirt and rocks and conducted experiments. This event was assisted by the mission Apollo 11.

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Invention of the first personal computer- 1/1975

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Invention of the first personal computer- 1/1975

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The first personal computer created was the MITS Altair 8800. It was designed and invented by John  Blankenbaker. The kit price was $439 and the assembled was $621. This event created many more of it's kind over time to today's world with many different kinds and brands of computers.

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The Chernobyl disaster was a nuclear accident. The event resulted in steam explosions and fires. It had released at 5% of the radioactive reactor core into the Ukraine environment. The explosion happened at the  Chernobyl Nuclear Power Plant, Pripyat.

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Creation of the World Wide Web- 8/6/1991

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Creation of the World Wide Web- 8/6/1991

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Tim Berners-Lee invented the World Wide Web 31 years ago. While Tim was working at CERN the original intention was for the Web to be used for sharing between scientist in institutes and university's around the world. Today we use the web daily. Tim had gave it to the world for free and now sparks all creativity possible.

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The fall of the Soviet Union occurred on December 26th, 1991. George Bush wanted to re-evaluate his plans for dealing with the Soviet Union and arms control. The president of the Soviet Union Mikhail Gorbachev decision was to allow multi-party elections and create presidency. But this later fell into a communist control which lead to the Soviet Union to collapse.

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Launch of the International Space Station-11/20/1998

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Launch of the International Space Station-11/20/1998

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The launch of the International Space Station (ISS) was on November 11th, 1998. The ISS is a Russian proton rocket. This particular spacecraft weighs 450 tons. It serves the US as a space environment research laboratory.

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At 8:56am on November 11th in 2001 a hijacked plane crashed into the north World Trade Center. 17 minutes later United flight 175 crashed into the south World Trade Center. Following these crashes a 3rd flight crashed into the Pentagon and the 4th crashing into a field in Pennsylvania. 9/11 has forever impacted the way of flying and most importantly airport security.

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The war in Afghanistan was the United States reaction purposely to the 9/11 attacks. Afghan leaders would resist to share where Osama Bin Laden (leader of 9/11 attacks). When the Afghan leaders refused the United States started bombing Afghanistan. The conflict is still ongoing with US troops still stationed there today.

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In 2003 Bush made the case that Iraq was supporting terrorism and planning attacks on the US. Some of these claims were doubted at the time and later were false. Shortly after that, the US invaded Iraq and took down the government of Saddam Hussein. Like the war in Afghanistan there are still troops in Iraq today.

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World population reaches 7 Billion- 10/31/2011

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World population reaches 7 Billion- 10/31/2011

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On October 11th, 2011, the world population reached 7 billion. This took over 12 years to accomplish. With this many and more people in the word will we have enough resources for over 7 billion people? When will the US run out of resources?

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A black hole is a space where gravity pulls so much light can't get out. Gravity is so strong because matter is squeezed into such a tiny place. These black holes can be big or small. Before April 10th, 2019, there was only drawings and models of black holes.