Comparison between Esperanto and Ido Ido was satisfied with it. Many former Idists, such as Otto Jespersen (who created Novial) left the movement, bleeding Ido of leaders. Of all synthetic auxiliary languages, only Esperanto and Interlingua-IL de ApI gained a sizeable following and textual corpus to this day. Esperanto is based on the "Fundamento de Esperanto" by L. L. Zamenhof; whereas the grammar of Ido is explained in the "Kompleta Gramatiko Detaloza di la Linguo Internaciona Ido". Since Esperanto has proved to be a living, stable language, nowadays Esperantists are less quick to reject influences from Ido. Probably the most fundamental of these is that
Ludwik Rydygier Ludwik Rydygier Ludwik Rydygier (German: Ludwig Anton Rydygier von Ruediger; 21 August 1850 – 25 June 1920) was a German-Polish surgeon and professor of medicine. Born in Dossoczyn (today Dusocin) near Graudenz (Grudziądz), at the time part of the Province of Prussia after partitioning of Poland. Since childhood he accented his Polish origin. Between 1859 and 1861 he was learning in gymnasium in Konitz, then also in gymnasium in Kulm, which he graduated in 1869. In years 1869-1878 he studied medical sciences at the University of Greifswald. After studies he was running a private clinic in Kulm. There he wrote