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
Ludwik Chałubiński where he was the first Pole to climb the Großglockner and Aletschhorn. 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