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
Ludwik de Laveaux (officer) Ludwik de Laveaux (officer) Ludwik de Laveaux was a Brigadier General of the Polish Army in World War I, World War II and Polish–Soviet War. He was born June 18, 1891 in Frysztakua a relative of the painter, Ludwik de Laveaux. He graduated in 1911 from Krakow University, and then studied architecture at the Technical University of Lwów. In World War I he served in the Polish legions 1 and 4 in the Lvov region. Starting a private soldier he was made an officer April 1, 1916, and in 1917 took command of the "city Defense Command" where they took