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Distinguished veins from arteries.
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Persian doctor who discovered the difference between measles and small pox.
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These two books are written by Avicenna
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Roger Bacon invents spectacles to help people who can't see.
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Founded to treat the ill back to health.
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Dissects a body.
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Published finding on human anatomy in De Fabrica Corporis Humani.
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Invented by Zacharius Jannessen
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Blood cells are discovered by him.
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Gives first smallpox inoculation.
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Use Timetoast to make dates, milestones, and turning points easier to understand in a clear visual format. Timetoast is a timeline maker for work, school, research, and stories.