The Ludwik Zamenhof Centre building of the Ludwik Zamenhof Centre as a branch of Lukasz Gornicki’s Podlaska Library in Bialystok. It is the first public library in Poland that has a collection in Esperanto and publications devoted to this language. The Library’s opening hours: Tuesday, Wednesday, Thursday: 1 p.m. – 5.30 p.m., Friday: 1 p.m. – 5 p.m. The Ludwik Zamenhof Centre The Ludwik Zamenhof Centre is a city cultural institution established in Bialystok at 19 Warszawska St. upon the motion of the President of the City. It was founded to celebrate the organization of the 94th World Congress of Esperanto that was held
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