What is Jan Jánský?
[[File:Jan Janský, 1902.jpg|thumb|right|150px|{{Center|Professor MUDr. Jan Jánský}}]] '''Jan''' '''Jánský''' (30 March 1873 in [[Prague]],[[Czech Republic]] - 8 September 1921 in Černošice) was a [[Neurology|neurologist]] and [[psychiatrist]]. He was the first to divide [[human]] [[blood]] into the four [[Blood type|types]] (A, B, AB, 0) of the [[AB0 blood group system]].<ref>{{cite web |url=http://czechrepublic.yolasite.com/blood-types-and-jan-jansky.php |title=Jan Jansky |publisher= The Czech Republic |access-date=January 17, 2017}}</ref> His discovery saved [[million]]s of lives.<ref>John Malam, ''A Brief Illustrated History of Science'' (North Mankato, MN: Capstone Press, 2017), p. 28</ref> == His life == He studied [[medicine]] at [[Charles University]] in [[Prague]]. From 1899 he worked in a psychiatric clinic. He became a [[professor]] at Charles University and a [[doctor of medicine]].<ref>Peter D'Adamo; Catherine Whitney, ''Eat Right 4 Your Type'' (New York: Riverhead Books, 2002), p. 21</ref> === World war I === He served as a [[Medical doctor|doctor]] for 2 years on the [[front line]]s.<ref name=Mole12>''The Neuronal Ceroid Lipofuscinoses (Batten Disease)'', Second Edition, eds. Sara Mole; Ruth Williams; Hans Goebel (Oxford: Oxford University Press, 2011), p. 12</ref> After suffering a [[Heart Attack|heart attack]] in 1916, he was dismissed from the army.<ref name=Mole12/> After that he was in charge of the department of Neurology and [[Forensic Psychiatry]] at the [[Central Military Hospital]] in [[Prague]].<ref name=Mole12/> He suffered from [[angina pectoris]]. Jánský died of [[Coronary artery disease]]. == Points of Interest == Jánský was a promoter of [[blood donation]]s. Donators of [[Czech Republic]] or [[Slovakia]] receive a medal. In 1953 he was the subject of a [[movie]] directed by [[Martin Frič]]. == References == {{reflist}} {{DEFAULTSORT:Jansky, Jan}} [[Category:Czechoslovak scientists]] [[Category:1873 births]] [[Category:1921 deaths]] [[Category:Deaths from coronary artery disease