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250
Ercisistratus studies the brain and distinguished between cerebrum and cerebellum
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300
Diocles wrote the first known anatomy book.
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500
Alcmaeon of Croton distinguished veins from arteries.
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Sep 6, 1559
Realdo Colombo describes the circulation of blood through the lungs in detail.
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Zacharius Jannssen invents the microscope.
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Anton van Leeuwenhoek discovers blood cells.
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Rene Laennec invents the stethoscope.
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First painless surgery with general anaesthetic.
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Louis Pasteur identifies germs as cause of diseases.
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First vaccine developed for rabies by Louis Pasteur.
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First contact lenses developed.
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Wilhelm Conrad Roentgen discovers x-rays.
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First vaccine developed for Bubonic Plague.
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Felix Hoffman developed aspirin.
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James Watson and Francis Crick work on the structure of the DNA molecule.
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Dr. Christiaan Barnard performs the first human heart transplant.
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First vaccine developed for chicken pox.
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first vaccine developed for Pheumonia
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Dolly the sheep becomes the first clone.