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the first pharmacy was established in Baghdad
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Discovered difference between small pox and measles
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surgery is considered a profession
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the first medical encyclopedia was called, "The Canon of Medicine"
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Roger Bacon invents spectacles
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Leonardo da Vinci dissects corpses
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Zacharius Jannssen invents the microscope
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new theory is made that the heart acts as a muscular pump that circulates blood around the body in the blood vessels
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Sir Christopher wren experiments with canine blood transfusions
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Blood cells were discovered
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The first smallpox inoculation was given
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Claudius Aymand performs the first successful appendectomy
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the first vaccine for any disease was developed and it was for smallpox
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Elizabeth Blackwell is the first women to gain a medical degree from Geneva Medical College in New York
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the first contact lenses were developed
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Earle Dickson invented the band aid
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Insulin was used to treat diabetes for the first time
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First vaccine for whooping cough
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discovers penicillin
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invents the first cardiac pacemaker
