1421 Esperanto in the outer asteroid belt at a distance of 2.8–3.4 AU once every 5 years and 5 months (1,983 days; semi-major axis of 3.09 AU). Its orbit has an eccentricity of 0.08 and an inclination of 10° with respect to the ecliptic. The body's observation arc begins with its first observation as at Heidelberg Observatory in October 1906, almost 30 years prior to its official discovery observation at Turku. This minor planet was named by the discoverer after the artificial language, Esperanto, which was created by inventor and writer, Ludwik Lejzer Zamenhof (1859–1917), who used the pseudonym "Doktoro Esperanto". The
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"