Comparison between Esperanto and Ido believed Louis Couturat had been well aware of what was going on. To this day there is much bewilderment in both the Esperanto and Ido communities about the rules and proceedings of the Committee. Dr Zamenhof refused to be involved in making changes to Esperanto but a group led by Louis Couturat elaborated on Ido as a "Reformed Esperanto". There was much bitterness on both sides. Louis Couturat polemicised against Esperanto until his tragic early death in a car crash in 1914. His loss was a great setback to those who wished to spread Ido. Not everyone involved in creating
Ludwik Birkenmajer of scholars. He was married Zofia (Sophie), the daughter of Franciszek Karliński, the professor of astronomy in the Jagiellonian University, and inherited his library embracing mostly the books on mathematics and physics. They had three sons: Aleksander Ludwik (historian of culture and exact sciences, and bibliologist), Józef (poet, interpreter and literature historian), and Wincenty (Polish philologist, teacher and renown Tatra Mountains-climber). His grandson is Krzysztof Birkenmajer (professor of geology, member of the Polish Academy of Sciences). In 2011 the Institute for the History of Science of the Polish Academy of Sciences received the name of father and son: Ludwik &