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 Kalkstein Ludwik Kalkstein Ludwik "Hanka" Kalkstein, also known as Ludwik Kalkstein-Stoliński, (13 March 1920, Warsaw – 26 October 1994, Munich); was one of the better known German Gestapo agents during the Warsaw Uprising as well as a Stalinist informant following the Soviet takeover of Poland. Along with his wife (Blanka Kaczorowska "Sroka"), they became traitors to the Armia Krajowa under not just one but two consecutive totalitarian regimes. Kalkstein was responsible for the arrest and execution by the Nazis of at least fourteen Polish underground officers, including the General Stefan Rowecki. Arrested by the Gestapo in April 1942 and interrogated, Kalkstein