The question "Which is world blood donor?" is grammatically incorrect and lacks clarity. It's likely asking either:
- Who is considered the "father" of blood donation/transfusion due to their significant contributions?
- What day celebrates blood donors worldwide?
Let's address both interpretations:
1. Who is Considered the "Father" of Blood Donation/Transfusion?
While there isn't one single "father," Karl Landsteiner is most prominently associated with blood donation history.
- He discovered the ABO blood group system in 1901, a discovery that revolutionized blood transfusions and made them significantly safer. Before this, transfusions were often dangerous and unpredictable due to blood type incompatibilities.
- For his discovery, Landsteiner was awarded the Nobel Prize in Physiology or Medicine in 1930.
Therefore, if the question is implicitly asking about the key figure in blood donation history, Karl Landsteiner is the closest answer.
2. What Day Celebrates Blood Donors Worldwide?
World Blood Donor Day is celebrated annually on June 14th.
- Why June 14th? This date marks the birthday anniversary of Karl Landsteiner (June 14, 1868).
- Purpose: The day aims to raise global awareness about the need for safe blood and blood products for transfusion and to thank voluntary, unpaid blood donors for their life-saving gifts of blood.
In summary, while Karl Landsteiner is not a person who is a blood donor, his work is intrinsically linked to the ability for safe blood donation to occur, and he is honored with World Blood Donor Day on his birthday.
