Professor Wallenberg, born in November 1862 in Stargard, Germany, into a Jewish family, embarked on his medical journey at the universities of Heidelberg and Leipzig. He earned his doctoral degree in 1886 and commenced his medical career at the Department of Medicine in Städtisches Krankenhaus in Danzig. He continued to do research after retirement. Unfortunately, in 1938, at the age of 76, he was forced to halt his research, his research laboratory was stripped due to the rise of the Nazi regime, primarily because of his Jewish heritage. In 1938, at the age of 76, he moved to Great Britain and later, at the age of 81, he relocated to the United States. He lived until 1949.