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the black death was a plague that killed millions of people. one in three people would die. this stoped the industrial revolution because everyone was so busy looking for a cure for the black death.
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caravel was invented aproximatly 100 years before but in this year the portugees modified it to become improved. 1487 they reached india
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the finding of the potato stopped hungar almost instantly. with this new food which could be made into so many diferant foods the plant helped stop hungar.
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intravenous injections, blood drugs and vaccines can be injected in to peoples bodies
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helped get rid of the plague but destroyed everything
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discovers blood cells and observes animal and plant tissues and microorganisms
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at first this invention wasnt very useful but it improved the idea of using steam to power a machanical object. in 1769, the invention of the steam engine was improved. this improved version was more efficient. the steam engines were used to power the first trains, boats, and factories
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this vaccine has saved aproximately 406 million lives.
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first successful human blood transfusion since then many lives have been saved from blood trnsfusions
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The telegraph was invented in 1844 by a man called Samual Morse. This was the frist invention made to comunicate with people without having to send it as a letter in the mail. The telegraphs would be used to send messages in morse code. Morse code was used so that differant countrys couldnt understand what one country would be saying to another.
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before this invention people had to hand sew by hand there own clothes or pay someone to do it for them. since this invention making clothes was much easier which has lead to making clothes in big factories which lead to being able to buy clothes in shops
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the river lock was used as a gate to hold back water, it would be open and water would be released in/out oof the river into a new part of it.
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end of monarchy changed to democracy
