Blood By meghanspinazze 2500 BCE Egyptians used bloodletting to try to cure diseases 500 BCE Greeks distinguished between arteries and veins Jan 1, 1659 Anton van Leeuwenhoek viewed blood cells under a microscope Jan 1, 1795 First blood transfusion performed Jan 1, 1901 Karl Landsteiner discovered three blood types: A, B, O Jan 1, 1902 Alfred Decastello discovered fourth blood type: AB Jan 1, 1922 Percy Oliver established the first blood donor service Jan 1, 1935 Mayo Clinic developed a method to store blood for transfusions Jan 1, 1937 Dr. Bernard Fantus established the first blood bank Jan 1, 1940 Karl Landsteiner discovered the Rh protein Jan 1, 1959 First case of AIDS recorded in the Congo Jan 1, 1984 Robert Gallo identified the virus causing AIDS Jan 1, 1985 Development of ELISA test to screen for diseases such as HIV Jan 1, 1987 Scientists began developing blood-screening tests for infectious diseases
