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Zacharius Jannssen
A Dutch lens grinder invents the microscope. -
William Harvey
Published An Anatomical Study of the Motion of the Heart and the Blood in Animals. -
Sir Christopher Wren
Administered medications intravenously by means of an animal bladder attached to a sharpened quill. Wren also experimented with animal blood transfusions. -
Anton van Leeuwenhoek
Refines the microscope and fashions nearly 500 models. He then discovers blood cells, and observes animal and plant tissues and microorganisms. -
James Lind
A Scottish naval surgeon, discovers that cirtus fruit can prevent scurvy. He publishes A Treatise of the Scurvy in 1754, identifying the cure for this common and dangerous disease of sailors. -
Edward Jenner
Created a vaccination for smallpox by making the body immune to the cowpox virus. -
Sir Humphry Davy
Discovers the antesthetic properties of nitrous oxide, even though it would not be used for 45 years after the discovery in a dentists office. -
Rene Laennec
He invented the stethoscope. -
James Blundell
British obstetrician is the first to perfom a successful human blood transfusion. -
Crawford W. Long
An Anerican surgeon uses ether as an general antesthetic during surgery.
