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  Ibn al-Nafis a physician from Cairo finds and describes the pulmonary system.
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  Spanish theoligist and physician Michael Servetus is burned at a stake for disagreeing with Galens theory that blood flows through the wall between the ventricles and instead thinking blood flows through the lungs.
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  Andreas Vesalius takes a stab at Galen in his book that was based upon human anatomy, DE FABRICA.
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  Fabricius an anatomist from Padua draws the first drawings of vein valves.
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  In 1628, William Harvey published a book explaining how blood circulates throughout the body and is pumped by the heart.
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  Jan Swammerdam was the first person to discover and describe red blood cells.
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  Italian anatomist Marcello Malpighi discover the capillary system.
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  Richard Lower performs first blood transfusion on animals.
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  Jean Baptiste-Denis performs a blood transfusion on a teenage boy and it is successful.
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  Anton Van Leeuwenhoek desribes red blood cells as 25,000 times smaller than a grain of sand.
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  British anatomist William Hewson finishes his research on blood coagulation specifically detailing the clotting process..
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  William Hewson writes a book describing his research on blood coaguation and his discovery of fibrogen.
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  Philip Syng Physick is credited with the first human to human blood transfusion.
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  James Blundell is credited with the first human to human blood transfusion that was published.
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  James Blundell, a British obstetrician and physiologist does first ever recorded human to human blood transfusion but his work wasnt published.
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  Sir William Osler findds out that small cell fragments from bone marrow make up majority of blood clots in blood vessels.
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  Karl Landsteiner the human bodies three main blood groups A, B and O.
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  Dr.Karl Landsteiners fellow scientists who worked with him found a new blood group AB.
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  Dr.Richard Lewisohn comes up with the perfect mixture of sodium citrate that can be mixed with donor blood that will prevent coagulation and wont harm the person recieveing the blood.
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  Dr.Richard Weil figures out that citrated blood can be stored in refrigerators then used and still work.
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  Percy Lane Oliver the first blood donor service operating from his home in London.
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  Soviets are the first to store and collect blood for transfusions in multiple hospitals.
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  Dr.Serge Yudin is the first to test cadaver blood on a human and finds out it is successful when he resuscitates a man who slit his wrists.
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  First mobile blood service established in Madrid by Dr.Norman Bethune.
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  Starts a blood collection, donation, and preservation facility in Chicago and called it a "blood bank", the first of many to be created.
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  Dr.Isidor Ravdin succesfully treats pearl harbor victims with albumin which increases blood volume.
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  Association of Blood Banks is formed by a national network of blood banks.
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  Dr.Carl W. Walter was a trained surgeon who developed the first plastic bag to store blood in.
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  Dr.Max Perutz discovers hemoglobin by using x-ray crystallography.
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  First cases of AIDS are reported.
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  Hemophiliacs begin to develop AIDS and Dr.Bruce Evatt suggests that AIDS is ot only prevalent in gay men, he suggests that it is blood borne.
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  Dr.Robert Gallo finds the virus that causes AIDS and names it HTLV III.
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  The ELISA test was used by blood banks and plasma centers to detect whether or not HIV antibodies were present in the donated blood.
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  More test were created to check for diseases in blood.
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  Albert Hustin and Luis Agote find out that putting sodium citrate in blood will prevent clotting.
