Louis-Christophe Zaleski-Zamenhof his grandfather, and speculates as to the planned language's future prospects. The book has now been published in Polish, Esperanto, Lithuanian, Czech, Japanese, Portuguese, Slovakian, French and Korean. Louis-Christophe Zaleski-Zamenhof Louis-Christophe Zaleski-Zamenhof (born Ludwik Krzysztof Zamenhof, 23 January 1925) is a civil and marine engineer, specializing in the design of structural steel and concrete construction. He is a grandson of the Polish-Jewish L. L. Zamenhof, the originator of the international auxiliary language Esperanto. Since the 1960s he has lived in France. He was born in Warsaw. After his father Adam Zamenhof was arrested and shot to death by the Nazis
Jan Ludwik Popławski with throat cancer. Jan Ludwik Popławski died on 12 March 1908 in Warsaw. Jan Ludwik Popławski Jan Ludwik Popławski (17 January 1854 in Bystrzejowice Pierwsze – 12 March 1908 in Warsaw) was a Polish journalist, author, politician and one of the first chief activists and ideologues of the right-wing National Democracy political camp. Popławski entered the University of Warsaw in 1874. As a student he belonged to patriotic political organization Confederation of Polish Nation (Konfederacja Narodu Polskiego). In 1878 he was arrested by Russian authorities. Released in 1882, Popławski returned to Warsaw and began to write in the newspaper "Prawda"