L. L. Zamenhof L. L. Zamenhof Ludwik Lejzer Zamenhof (; , ; – ), credited as L. L. Zamenhof and sometimes as the pseudonymous Dr. Esperanto, was a Polish-Jewish ophthalmologist and the creator of Esperanto, the most successful constructed language in the world. He grew up fascinated by the idea of a world without war and believed that this could happen with the help of a new international auxiliary language, which he first developed in 1873 while still in school. Zamenhof was born on 15 December (3 December OS) 1859, the son of Markus Zamenhof (27 January 1837 - 29 November 1907) and
Ludwik Finkel Mościcki. Ludwik Finkel was buried in the Łyczakowski Cemetery. Ludwik Finkel Ludwik Finkel (born 20 March 1858 in Bursztyn, d. 24 October 1930 in Lwów) was a Polish historian, and rector of the Lviv University. From 1878 to 1881 he studied history, philosophy and history of literature at the Lwów University under the tutelage Aleksander Hirschberg, Julian Ochorowicz and Roman Pilat. His master was Ksawery Liske. Good friend of Finkel was Stanisław Lukas. In 1882 he gained a PhD. Topic of his thesis was "Marcin Kromer, historyk polski XVI wieku" (Marcin Kromer, a Polish historian of 16th century). Among his