Zamenhof-Esperanto object Zamenhof-Esperanto object A Zamenhof-Esperanto object (, ZEO) is a monument or a place linked to L. L. Zamenhof, the constructed language Esperanto he created and first published in 1887, or the community of Esperanto speakers which has been using the language since. Zamenhof-Esperanto objects are streets, memorials, other public spaces such as squares, parks or bridges. Zamenhof or Esperanto sometimes appear also in the names of buildings and companies such as hospitals, hotels or translation agencies. There have also been vehicles, such as zeppelins, ships and trains named after Zamenhof or Esperanto, and some species, rivers, islands, asteroids and other
Ludwik Krzywicki in the organization and management of scientific bodies. He served as vice-director of the Central Statistical Office, taught at the University of Warsaw (1919–36) and other institutions of higher education, and directed the Socio-Economic Institute. During World War II he was injured during the defence of Warsaw in September 1939, and the bomb that destroyed his apartment also caused the loss of most of his papers and manuscripts. His working conditions worsened and he died of heart disease in 1941. Ludwik Krzywicki Ludwik Krzywicki (21 August 1859 – 10 June 1941) was a Polish anthropologist, economist and sociologist. One of