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ice cream was created in 200 B.C and was made by accident. An interesting fact is that ice cream was originally was served to royalty only. The spread was that France made many ice cream parlors and opened them up to the public. The modern uses of ice cream included many different types of ice cream including gelato and mochi. I rate the presentation 5 stars because of the stellar detail and the interesting facts.

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Back then, guns were made of iron but had no trigger. The guns were powered by gunpowder and a ball of steel. The modern uses of guns was that many different models of guns being made. I rate this presentation 4 out of 5 stars because of the innovative invention but could have used more detail.

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Fireworks were originally made in the 9th century. An interesting fact is that fireworks were made to scare off evil spirits. The spread included the Europeans recreating the recipe of fireworks. The modern uses of fireworks included fireworks used for celebrations on the forth of July. I rate the presentation 5 stars because of the interesting facts and history.

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An interesting fact about gunpowder is that the Chinese alchemists originally tried to create a life elixir but made gunpowder instead. The spread included gunpowder being used with all kinds of different firearms today. I rate it 5 stars because of the great detail and the interesting history. They also used lots of factual evidence.

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An interesting fact is that Chinese people would eat the tea lief .Different types of medicine included acupuncture and tea. The idea of medicine was passed on though different regions, and altered through the uses of pills and other illness killing medicines. Lots of detail and loved the different types of medicine instead of just one. 5/5 stars.

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An interesting fact about the abacus is that it does not really have one creator because different versions existed at the time. The abacus was used for math and school and taught kids  how to count. The spread was that different regions had their own variation or model's of the abacus. Though the abacus was not used that much today it still had a big impact on the education systems to this day. 5/5 stars because of the organization and great speaking voices.

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An interesting fact is that paper was made out of bamboo made into pulp. Traders often used paper every day. The present uses of paper are the likes of education and writing messages. Interesting and engaging presentation and commercial! 5/5 stars.

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An interesting fact is that the hand cannon is one of the first trigger activated weapons. The hand cannon spread because of other gun models being made in the honor of the hand cannon. I rate the presentation 4 out of 5 stars because of the great presentation piece and speaking voices.

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The compass was originally was created by the Han Dynasty. One of the ways that compass spread was that sailors used compasses to trade. A rather interesting fact is that the origins of the compass are unknown. I rate the presentation 5 stars because of the great speaking voices and slides.

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An interesting fact is that they were made out of a wood called lath and the arrows had a bronze tip. Crossbows were spread through Chinese trade routes. More modern crossbow designs are more effective. I rate the presentation 4/5 stars because of the cool new models and modern uses.

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An interesting fact is that silk is the strongest fabric in the world. Silk was often used for dresses and formal wear. Silk was invented by an empress Named Leizen. On the silk road they traded silk on a 4,000 mile path. The modern uses include sheets fake hair and more.
i rate it 4 stars out of 5 because of the interesting facts and engaging prezi.

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The calligraphy brush was often made of animal hair like goat. Calligraphy was often used as messages but other more civilized people used calligraphy as a way of art. Different cultures used the calligraphy idea and changed it. The impact calligraphy was uses such as self expression, stress relief and communication. I rate this 4/5 stars because of the interesting facts and lots of uses today.

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An interesting fact is that mechanical clocks were used to decide who the next King would be. The mechanical clock originally ran on water. Trading helped the spread of mechanical clocks to other regions. Mechanical clocks sparked the idea of created  watches, digital clocks and  modern clocks. I rate the presentation 5 stars because of the cool facts and origins.

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Fact: The first needle was put in the neck to relive stress. Acupuncture was originally used to bring balance throughout the human body. Acupuncture spread because of a nomad who enjoyed the experience. Acupuncture has now been used to relive stress. I rate the presentation 5 stars. Very well organized and stellar detail.

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The egg roll is actually an american version of a spring roll. The spring roll was used as a special appetizer to celebrate springtime. Egg rolls are often pared with chop suey. Many people still eat egg rolls at many restaurants. Spring roll also brought people together because of the traditional celebration of springtime. I rate the presentation 4 out of 5 stars. Great detail and lots of facts.