L. L. Zamenhof the Yiddish form of the forename and a russified version of his surname; many later Russian language documents also include the patronymic "Markovich", as is the custom in the language. His family name is of German origin and was originally written "Samenhof"; the spelling Zamenhof reflects the romanization of the Yiddish spelling , as well as the Esperanto and Polish spellings. In his adolescence he used both the Yiddish "Leyzer" and the Russian "Lazar". While at university, Zamenhof began using the Russian name "Lyudovik" (also transcribed "Ludovic" or translated as "Ludwig") in place of "Lazar", possibly in honor of Francis
The Ludwik Zamenhof Centre a permanent exhibition - Bialystok of Young Zamenhof – and various temporary exhibitions, concerts, film projections, and theatre performances. Moreover, the Centre regularly holds panel discussions, lectures, and literary promotions. The Zamenhof Centre organises also numerous educational workshops for children and teenagers and introduces modern social and educational projects, such as Living Library and „Discover Bialystok” – an outdoor game realised in the urban area of the city. The building where the Ludwik Zamenhof Centre is situated was included in the Jewish Heritage Trail, which was opened in June 2008 in Bialystok. The Trail was created by a group of