Mark Zamenhof Mark Zamenhof Mark Zamenhof (was born January 27, 1837 in Suwałki, died November 29, 1907 in Warsaw) is Esperanto form of Markus Fabianoviĉ Samenhof, "Christian" or goja name of Mordeĥaj Zamenhof, son of Fabian Zamenhof and father of L. L. Zamenhof (the creator of Esperanto); teacher of languages French and German. Knight of many orders. Descriptive analysis of the official documents allowed to ascertain that Mordka Zamenhof officially altered his name in Marek and postmortem the name of his father Fajwel to Fabian, what officially was lodged April 20, 1871, marginally of the earlier birth-certificate of Fejgla. Some unknown facts
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