1922: Blood Donor Service Established in London Volunteers agree to be on 24-hour call and to travel to local hospitals to give blood as the need arises. All volunteers are screened for disease, tested for blood type, and their names are entered into a phone log. 1930: First Network of Blood Facilities The Soviets are the first to establish a network of facilities to collect and store blood for use in transfusions at hospitals. 1935: First In-Hospital Blood Facilities Mayo Clinic in Rochester, MN is the first to begin storing citrated blood and utilizing it for transfusions within a hospital setting in the U.S. 1936: Barcelona Blood-Transfusion Service The Barcelona Blood-Transfusion Service collects blood, tests it, pools it by blood group, preserves and stores it in bottles under refrigeration, and by way of vehicles fitted with refrigerators, transports it to front line hospitals during the Spanish Civil War. 1937: Term "Blood Bank" Coined Dr. Bernard Fantus at Chicago's Cook Co. Hospital coins the term "blood bank." 1939-40: Discovery of Rh Blood Group Discovery of the Rh blood group and identification of the antibody causing still births as the anti-Rh. 1940: U.S. Sends Blood Plasma to Great Britain U.S. processes, tests, and stores plasma for shipment to Great Britain. 1941: Red Cross Organizes Blood Plasma War Effort Red Cross agrees to organize a civilian blood donor service to collect blood plasma for the war effort. 1943: Transfusion-Transmitted Hepatitis First description of transfusion-transmitted hepatitis. 1947: American Association of Blood Banks Community blood banks join together to form a national network of blood banks called the American Association of Blood Banks. 1948: Development of Plastic Bag Development of the plastic bag revolutionizes blood collection. 1962: America's Blood Centers Founded Seven community-based blood centers came together with the help of local hospitals, physicians and civic groups to establish America's Blood Centers. 1964: Community Blood Center Established Community Blood Center (CBC) established in a Dayton medical building basement. 1971: CBC Moves to Current Location CBC moved to current Dayton headquarters. 1965: Cryoprecipitates Developed The discovery that slowly thawed frozen plasma yields deposits high in Factor VIII. These deposits, called cryoprecipitates - or cryo - are found to have much greater clotting power than plasma and are given to hemophiliacs to stop bleeding episodes. 1971: FDA Regulation Regulation of blood banking transfers from the Division of Biologics Standards (DBS) to the Food and Drug Administration (FDA). 1971: Testing for Hepatitis B Development of a test for hepatitis B antibodies, thereby identifying infected donors; the test is mandated by the FDA.