L. L. Zamenhof Lodwick, who in 1652 had published an early conlang proposal. When his brother Leon became a doctor and started signing his name "Dr L. Zamenhof", Zamenhof reclaimed his birth name "Lazar" and from 1901 signed his name "Dr L. L. Zamenhof" to avoid confusion with his brother. The two L's do not seem to have specifically represented either name, and the order "Ludwik Lazar" is a modern convention. In 1905 Zamenhof received the Légion d'honneur for creating Esperanto. In 1910, Zamenhof was nominated for the Nobel Peace Prize, by four British members of parliament (including James O'Grady, Philip Snowden) and
Ludwik Hirszfeld Ludwik Hirszfeld Ludwik Hirszfeld (5 August 1884 in Warsaw – 7 March 1954 in Wrocław) was a Polish microbiologist and serologist. He is considered a co-discoverer of the inheritance of ABO blood types. He was a cousin of Aleksander Rajchman, a Polish mathematician, and of Ludwik Rajchman, a Polish bacteriologist. After attending the Gymnasium in Łódź, Hirszfeld, born into a Jewish family and later a convert to Catholicism, decided to study medicine in Germany. In 1902 he entered the University of Würzburg and transferred in 1904 to Berlin, where he attended lectures in medicine and philosophy. Hirszfeld completed his doctoral