Zamenhof Day Zamenhof Day Zamenhof Day (), also called Esperanto Book Day, is celebrated on 15 December, the birthday of Esperanto creator L. L. Zamenhof. It is the most widely celebrated day in Esperanto culture. On this day, Esperantists hold information sessions and cultural gatherings to promote literature in Esperanto. The history of celebrating Esperanto on Zamenhof's birthday can be traced back to 17 December 1878, when at a birthday party for his 19th birthday he presented to his friends his "Lingwe uniwersala", the first version of his international language. By 1887, this language had evolved into what is now recognized as
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