L. L. Zamenhof Esperanto, usually rendered as "humanitism" in English, sometimes rendered loosely as humanitarianism or humanism), based on the principles and teachings of Hillel the Elder. He said of Homaranismo: "It is indeed the object of my whole life. I would give up everything for it." Zamenhof came from and lived a very-much multilingual life. His name is/was variously translitterated, depending on the language: At his birth Zamenhof was given the Hebrew name "Eliezer" by his parents, the equivalent of the Latinized "Lazarus". However Zamenhof was born under Russian domination, and so his birth certificate records his name as "Leyzer Zamengov", using
Ludwik Hirszfeld Hirszfeld was the first to foresee the serological conflict between mother and child, which was confirmed by the discovery of the Rhesus factor. Upon this basis he developed, in the last years of his life, an "allergic" theory of miscarriage and recommended antihistamine therapy. Hirszfeld also investigated tumors and the serology of tuberculosis. His discovery of the infectious agent of paratyphoid C had far-reaching consequences for differential diagnosis. Ludwik Hirszfeld Ludwik Hirszfeld (5 August 1884 in Warsaw – 7 March 1954 in Wrocław) was a Polish microbiologist and serologist. He is considered a co-discoverer of the inheritance of ABO blood