Google Doodle: Next time you donate blood you'll know what Karl Landsteiner discovered
GOOGLE Doodle is celebrating the man who discovered blood groups in 1901 - Karl Landsteiner.
The Austrian and American biologist would have been 148 years on June 14.
Before Landsteiner's discovery, blood transfusions had been attempted as early as the 17th century with some success.
However, attempts to conduct transfusions between animals and humans proved fatal and transfusions between incompatible humans were also problematic.
So when Landsteiner identified the A, B and O blood groups, he made transfusions much safer.
A Nobel Prize winner, he also collaborated with Dr Erwin Popper, to isolate the virus that causes polio and helped create the vaccine.