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B.C.E
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to 1400 B.C.E
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BC
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B.C.E
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BC
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described the circulation of blood and the pumping of the heart
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AD or CE
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invented the microscope
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discovered the vaccination for smallpox
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the first doctor to use an antiseptic during surgery to prevent infection in the incision
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invented the stethoscope
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Angle Of the Battlefield
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discovered an altered polio virus vaccine
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1st test tube baby
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creator of the pral polio vaccine which was more effective than Salk's vaccine