Blood Timeline By melambert 2500 BCE Egyptians used bloodletting to try to cure diseases B.C. 500 BCE Greeks distinguished between arteries and veins B.C. 1659 Anton Van Leeuwenhoek viewed blood cells under a microscope A.D. 1795 First blood transfusion preformed 1901 Karl Landsteiner discovered three blood types: A, B, O 1902 Alfred Decastello discovered fourth blood type: AB 1922 Percy Oliver established the first blood donor service 1935 Mayo Clinic developed a method to store blood for transfusions 1937 Dr. Bernard Fantus established the first blood bank 1940 Karl Landsteiner discovered Rh protein 1959 First case of AIDS recorded in the Congo 1984 Robert Gallo identified the virus causing AIDS 1985 Development of ELISA test to screen for diseases such as HIV 1987 Scientists began developing blood-screening tests for infectious diseases
