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 Maciej Ludwik Maciej Ludwik Maciej (May 16, 1915 – March 12, 2007) was a Polish military pilot, who participated in World War II. Son of Jan and Anna (née Donocik), Ludwik Maciej graduated from Primary School in his hometown of Dziedzice and continued his education in a Grammar School in Bielsko (presently Nicolas Copernicus High School in Bielsko-Biała). During his school years he played football for 'Grażyna', which was part of the 'Sokół' ("Falcon") Polish Gymnastic Society. Having voluntarily joined the military forces in 1935, he took his military oath and after becoming a qualified pilot, he joined the 2nd Air