Please answer the following question: What key details about jaroslav kozlík  can be extracted from the following bio?  Bio: jaroslav kozlík -lrb- 22 may 1907 -- 21 october 2012 -rrb- was a czech educator and theorist of education , a senior member of the sokol movement , a pioneer and a former volleyball champion in czechoslovakia . he was the author of 30 books and over 300 articles , mostly devoted to the theory of education and sports organizations . kozlík developed the concept of physical education for elementary schools in the czech republic and slovakia . in 2009 , he was named an honorary citizen of prague 4 , the largest city district of prague . until his death , kozlík was active in the sokol organization , criticizing its current administration for a lack of edificatory impingement on society and youth .
A:
- caption is jaroslav kozlík in february 2012- death date is 21 october 2012- birth date is 22 may 1907- name is jaroslav kozlík- image size is 220- image is jaroslav kozlik 2012 3186.jpg- birth place is bystřice pod hostýnem , czech republic- occupation is educator