December 15, 1859 - April 14, 1917
Russian (now Poland) Jewish ophthalmologist and creator of the Esperanto language
Author of "Uno Libro", "Duo Libro" and "Fundamentals of Esperanto"
Nominated for the Nobel Peace Prize twelve times
Also called Ludoviko Lazaro Zamenhofo, Louis Lazare Zamenhof and Ludwig "Levi" Lazarus Samenhof