Early Life, Family and Medical Training Carl Heitzmann was born on 2 October 1836 in Vinkovci, Austrian Empire. He came from a Jewish family, the son of Martin Heitzmann, a surgeon serving in the Austrian army. This lineage of medical practice was established early. By 1854, Heitzmann had completed his gymnasium studies in Pest, a move that set the trajectory for his professional life. He did not merely pursue a hobby; he entered the…