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The first pistol was invented in 1540 in ITaly by Caminelleo Vitelli of Pistoria
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Copernicus was the first person to say that the sun was the center of the Universe and every planet obited around it
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The Pencil was invented in 1564 when people found a huge mine of black carbon in England.
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The Thermometer was invented by the great Galileo Galilei in 1593.Thermometers are very important for Frigirators and house for th temperture.
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The Submarine was invented in england in 1620 by James I and was tested in River thomes
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Otto Von Guerike invented the Air pump.He was the first person topull in air from his "Magdeberg hemispheres".Air pumps play a big role for animals in a fish tank.
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Calculus was invented in 1665 in England/Germany By Isacc Newton and G Leibnitz.Calculus is a branch of math its one part of math and it is all about mapping changes.
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The Earlest date we could find for the battery was 1749 invented by Benjamin Franklin when he was experimenting with electricity.
