Background
Daniel Mandl was born in Prostějov, Moravia.
Daniel Mandl was born in Prostějov, Moravia.
He studied engineering at the University of Vienna, Austria.
During World War I, he commanded an artillery unit of the Austro-Hungarian Army, and fought in Albania. A decorated officer, he resumed his studies after World War I. Upon graduation, he was employed by the General Electrical Company in Berlin. He was involved in the electrification of Slovakia, and he introduced the then-new technology of arc welding to Czechoslovakia, making improvements to arc welding electrodes.
After the annexation of rump Czechoslovakia by Nazi Germany on March 15, 1939, Mandl held a teaching position in the Technical School founded by the Brno Jewish community.
In Terezin, Mandl worked in the Jewish self-administration. He participated in the Jewish cultural life in the ghetto, delivering at least one lecture, titled "A Chapter from Some Thoughts On the History of Humanity," on June 23, 1944.