Question: Who figured out a way to determine the type of blood?

context: No context provided
question: Who figured out a way to determine the ABO type of blood?
short_answers: Karl Landsteiner
Landsteiner
context: The term "Rh" was originally an abbreviation of "Rhesus factor." It was discovered in 1937 by Karl Landsteiner and Alexander S. Wiener, who, at the time, believed it to be a similar antigen found in rhesus monkey red blood cells. It was subsequently learned the human factor is not identical to the rhesus monkey factor, but by then, "Rhesus Group" and like terms were already in widespread, worldwide use. Thus, notwithstanding it is a misnomer, the term survives (e.g., "rhesus blood group system" and the obsolete terms "rhesus factor", " rhesus positive", and "rhesus negative" – all three of which actually refer specifically and "only" to the Rh D factor and are thus misleading when unmodified). Contemporary practice is to use "Rh" as a term of art instead of "Rhesus" (e.g., "Rh Group," "Rh factors," "Rh D," etc.).
question: Who figured out a way to determine the rhesus factor type of blood?
short_answers: Karl Landsteiner
Karl Landsteiner and Alexander S. Wiener
Alexander S. Wiener

Answer: The ABO blood group system is used to denote the presence of one, both, or neither of the A and B antigens on erythrocytes. The ABO blood types were discovered by Karl Landsteiner in 1901; he received the Nobel Prize in Physiology or Medicine in 1930 for this discovery. The term "Rh" was originally an abbreviation of "Rhesus factor." It was discovered in 1937 by Karl Landsteiner and Alexander S. Wiener, who, at the time, believed it to be a similar antigen found in rhesus monkey red blood cells.