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 Rajchman the first cousin of Ludwik Hirszfeld, a Polish microbiologist. Ludwik Rajchman is the father of Jan A. Rajchman, a Polish computer scientist, inventor of magnetic-core memory. Rajchman grew up in Warsaw in the difficult conditions of the Russian occupation. At an early age, he and his sister Helena became keenly aware of the social injustices in their "country" (Poland did not officially exist at the time) and were involved as teenagers in teaching young workers. As an adult, he joined the Polish socialist party (PPS) and was involved in the 1905 uprising and even arrested. After several months in prison