L. L. Zamenhof the Yiddish form of the forename and a russified version of his surname; many later Russian language documents also include the patronymic "Markovich", as is the custom in the language. His family name is of German origin and was originally written "Samenhof"; the spelling Zamenhof reflects the romanization of the Yiddish spelling , as well as the Esperanto and Polish spellings. In his adolescence he used both the Yiddish "Leyzer" and the Russian "Lazar". While at university, Zamenhof began using the Russian name "Lyudovik" (also transcribed "Ludovic" or translated as "Ludwig") in place of "Lazar", possibly in honor of Francis
Ludwik Chałubiński Ludwik Chałubiński Ludwik Chałubiński (2 August 1860 in Warsaw – 17 April 1933 in Zakopane) was a Polish Alpinist, chemician and engineer. Son of Tytus Chałubiński, Ludwik started climbing the Tatras already at the age of 14, initially with his father and then with his friends. In 1877 together with guides Wojciech Roj and Maciej Sieczka he made the first ascent of the Mięguszowiecki Szczyt Wielki. He was also the first to reach the summit of Młynarz (1885), the second to reach Baranie Rogi (1884) and the third on top of the Durny Szczyt (1881). He also climed the Alps,